Thanks guys! Parts are arriving- system build should be early next week.
Asus M4A88td-M mobo
AMD phenom X4 955 cpu-watercooled
PNY GeForce GTX470
2X 20" widescreen DVI monitors
20" HDMI Display monitor (off mobo- crossfire) http://img.tomshardware.com/forum/uk/icones/smilies/pt1...
I'm upgrading to Adobe CS5 suite so I had to go 64bit.
oh yeah, I got a Corsair 700w PSU-( the koolance tower uses a bit of juice)