It's an i7/920, 12GB of Corsair DDR3/1333 RAM, 4xSamsung 1.5TB drives, a Gigabyte P55-UD3R, 3x OCZ 60GB SLC drives, 2x ATI 5850s, a Corsair 750W PSU, an LG BD burner and an Antec 300 chassis.
Total is around $4200. I think.
I'm sure I could have gone with the faster i7, but I don't think...