Got it working.
There are CPU options in the BIOS. One labelled something weird, but the help thing said only disable for Windows XP, and it defaulted to disable. I enabled it and some other options became available, and when I saved and exited one more core came online.. Vista installed drivers and rebooted. I went in to the CPU settings on the BIOS again and enabled the rest of the options. The last one, HyperThread, enabled the last two cores. The OS does use all four cores for itself and everything I throw at it, so I saw a HUUUGE speed increase.. from booting up to everything.. Love the Quads!!
I got the ASUS P5n-D with some OC options.. not usually my bag, but it looks like I'm pretty well rigged for OCing, maybe I'll take a stab at it.
Complete system:
Q6600
Rosewill 950W PS
GF 9800 GTX(G92)-512GB (675mhz) (only got one for now)
ASUS P5N-D SLI
4GB Corsair ram.. DDR2 800 (2 chips)
and of course 3 SATA drives, 320GB each in a RAID 5
Asus DVD-RW
The Apevia case has a bunch of sensors in it and a colorful LCD on the front with meters
Thanks!