I almost ordered the Zalman CNPS-8000A. I was pretty sure it would fit in my setup, but I had concerns about its efficiency. So I kept looking for something else. There was a new low profile cooler from SilentX (EFZ-100HA1) that looked good, but SilentX doesn't have a very good reputation from what I read. They seem to be to computer cooling of what Bose is to audio equipement : overpriced and unimpressive. But then I stumbled on a sale at NCIX where they let go the Prolimatech Samuel 17 go for 40$. By my calculations, it should fit, barely, but it should. I ordered two and I'll let you know how effective it is.
With a 120mm fan and six heatpipes, the Prolimatech cannot be worse than the retail Intel heatsink.