Allow me to offer some thoughts, if I may.
I've noted that Gigabyte boards have generally been really solid recently, so I was expecting to get a Gigabyte board for my Sandy build. Unfortunately, it looks like people don't like Gigabyte's boards:
"The Gigabyte P67A-UD4 is a very good motherboard but it is lacking in the newer BIOS and software overclocking features you can find on other motherboards. The BIOS is somewhat glitchy and a bit mush to use. Even without all the bells and whistles, this ~$189 motherboard overclocked our 2600K processor to a solid 4.8GHz like we have seen on all other motherboards that we have tested. (Amazon, Newegg, TigerDirect) Given these facts, I think the board should be priced a bit less expensive. And it is worth mentioning, that Gigabyte is now making motherboards that you would not be ashamed of putting in a chassis with a window. In terms of aesthetics, we really like the new look Gigabyte is going with." --
http://hardocp.com/article/2011/01/27/gigabyte_p67aud4_motherboard_review/6
"As the most expensive board in the bunch, Gigabyte's GA-P67A-UD4 has more to prove than its rivals. There's a lot to like here, including low power consumption under load and integrated audio with Dolby Digital Live support. The UD4 also has the best peripheral performance of the bunch. However, it's missing the powered eSATA ports and FireWire connectivity available on cheaper alternatives. The lack of UEFI support is also disappointing, but not as much as the sluggish responsiveness of the board's old-school BIOS. If the UD4 were cheaper than the alternatives, we might be more enthusiastic. But it's not, so we'll move on." --
http://techreport.com/articles.x/20190/15
Since I built my new PC, Anand compared the Gigabyte vs Asus boards:
"After playing with both boards, I can only come to one conclusion – if it were my money, I would take the ASUS P8P67 Pro over the Gigabyte P67A-UD4. With the ASUS board, you are getting a detailed UEFI, an awesome auto-overclocking tool, better energy saving features, a USB 3.0 bracket , more SATA 6 Gb/s ports, Intel gigabit Ethernet, and in my case, scope for a better overclock. The Gigabyte board is essentially expensive for what is on offer, in terms of usability, features, and extras." --
http://www.anandtech.com/show/4130/the-battle-of-the-p67-boards-asus-vs-gigabyte-at-190/11
I am indeed running the Asus P8P67 Pro. It took me a long while to figure out the multiple versions of the P8P87 line, but the Pro ended up being my choice as it had a better PCI-e layout if/when I go SLI/Crossfire, and had the Intel GigaE controller. I also wanted to use the new UEFI BIOS, as it sounded cool. The Bluetooth was a non-issue for me, although it was cute to stream some audio from my iPhone to my PC. And I heard some nice things about it from TechReport, a place that seems pretty reasonable and is one of the few places to directly compare 1155 boards (here's another -
http://www.tomshardware.com/reviews/p67-motherboard-roundup-lga-1155-sandy-bridge,2837-31.html - but how did they not review a Gigabyte board?).
"For just $10 more than the GD65, you should be able to pick up Asus' P8P67 PRO. Totally worth it. Asus ticks all the right boxes on the peripherals front and even adds a few extras like built-in Bluetooth and a third PCI Express x16 slot. The UEFI BIOS is a revelation, offering both a slick presentation and an incredibly responsive interface that's really a pleasure to use. And, while the PRO's peripheral performance isn't particularly stunning, it's very competitive."--http://techreport.com/articles.x/20190/15
The Hyper 212 (plus) seems like a great HSF - cheap, and endorsed by both Techreport (
http://techreport.com/articles.x/20138/6) and SPCR (
http://www.silentpcreview.com/Recommended_Heatsinks). I found some sites that looked less reliable, and the Hyper 212 looked like it compared well to HSFs that were $70+.
I'm pretty impressed with the P8P67. The UEFI BIOS is pretty slick, although there's no reason to regularly enter the BIOS. For the amount of hardware I have, it seems perhaps a touch faster to get through the BIOS when booting. The windows-based program they include makes OCing ridiculously easy. I think Kyle from HardOCP summed it up best:
"Overclocking Sandy Bridge is about as easy making toast. In fact I am pretty sure that there are some of you out there that cannot make toast that can OC the shit out of Sandy Bridge." --
http://hardocp.com/article/2011/01/03/intel_sandy_bridge_2600k_2500k_processors_review/6
For me, OCing Sandy Bridge has been a joy. I am now too busy to mess with all the voltages and multipliers, but with Sandy it's just so straight forward. Again, with the AI Suite software from Asus (and many other MB makers have similar software I think), you can tell it to just OC it for you, and adjusts the base clock, multiplier, and voltage, incurs a few reboots, then says what the best it got was. 4.4 GHz in my case, not bad (3.8 GHz is the top default turbo frequency on the 2600K's when only 1 physical core is busy, so that's a only 16% I guess). My biggest complaint so far - my memory (see below) apparently isn't detected properly, but with their "memOK" button it works fine but I have to open the case to hit the little memOK button when I change hardware (including putting in a SATA drive - Dan from HardOCP apparently found this glitch as well, I haven't tried the Hot Swap trick yet -
http://hardocp.com/article/2011/01/05/asus_p8p67_ws_revolution_motherboard_review/7).
I'm also running the Corsair Vengeance 4GBx2 setup (
http://www.newegg.com/Product/Product.aspx?Item=N82E16820233144). I'm running at 103 MHz baseclock and a 44 multiplier, and I set my RAM to 1600 MHz in the BIOS, and it's reported as 824.2 MHz in CPUz (an 8x multiplier), giving me 1648 MHz. But I think this is largely academic, as I don't think Sandy gains much from increasing memory bandwidth - if take a close look at this article, and especially at the graphs, then the prices of higher-end memory, to decide if the ~3% performance gain of the fastest memory is worth it.
"If you're the type of person that runs dozens of applications all at once, then a higher memory frequency does help, particularly when you're running demanding software. However, our testing shows that memory rated at over 1,866MHz doesn't give much extra performance. Worse still, in some applications only 1,333MHz memory gives a performance penalty, meaning that 1,600MHz memory is fine.
If you're doing anything other than heavy multi-tasking - this goes for gamers in particular - then a 1,600MHz or 1,866MHz kit is plenty. You could opt for CL8, as we saw some advantage in the video encoding test, but we wouldn't obsess over this factor, especially if a CL9 kit is much cheaper." --
http://www.bit-tech.net/hardware/memory/2011/01/11/the-best-memory-for-sandy-bridge/12
I recently discovered the joys of VM (
http://www.storageforum.net/forum/showthread.php?t=8527&highlight=virtual), and I've now decided that for me, 8 GB is actually a pretty reasonable amount of RAM (figure ~3 GB for Windows 7 and applications, another 2-4 GB per VM, and sometimes running two VMs). Newegg is running (expires in a few hours!) a 15% off memory sale (code DM15A0111US), and the Vengence is $30 off already and with free shipping, and for Christmas I got a $100 newegg gift card that I have no other immediate use for...so I plurged and spent $89 for another 8 GB of RAM. But before doing that I wanted to make sure my setup could accommodate another stick of RAM in the slot closest to the HSF (the Vengeance sticks are tall, and the 212 is relatively large). The Corsair Vengeance sticks can be put into all 4 memory slots with a Hyper 212 on my board (P8P67-PRO) - I recently took one of my two sticks from a slot well clear of the HSF and put it in the one right next to the Hyper 212 and it fit just fine, although it is snug against the fan on the 212 (I put an extra 120 mm fan on mine using the included bracket to allow a push-pull combination across the heat sink).
Which brings up the BIOS issue. I heard (on some forum, can't remember which), that the older BIOS in the Asus P8P67 can't didn't recognize four 4 GB sticks. I previously had not updated the BIOS since everything seemed to run fine. So I updated my BIOS (from end of October) to the one from December, then ordered the RAM. The funny thing is, it seems to run a little hotter since I upgraded the BIOS to the late-December (vs. October) version. Strange, and I'm not sure why.
Happy to answer specific questions if I can.