Couple of updates,
Growing tired of the grfx corruption coming out of screen blanking, I allowed vista to install old nv griver from november for the 7600, so far it works great. ltv2g has 2 new releases over the 100.59 I was using, one being whql certified, but as I dont need any of the game specific issues they seem to be targeting Ill stick w/ what I got untill Windows Update pushes out a new version.
As far as Vista 64 vs 32 bit, On my desktop, upgradeing to XP64 bit and a raptor showed noticeable speed increase over XP32. Although I have not put Vista 32 on the laptop, only 64 I did tool around alot w/ 32 bit on my desktop, which had lower specs except hdd speed, and I havnt seen a noticeable spped up using 64 bit. If I did an apples to apples side by side I might see something, but as of right now my experiences hasnt shown anything special.