Hello guys im new here, so i just wanted to ask you if my new pc can run vista 64.

My system specs:

Amd 64 Phenom x3 8450 2.1 @3600 (is it good for new games?)
4gb ram @800
XFX Geforce 8600gt 1gb @540 clock
Samsung 320GB 7200 16mb
but...
my mobo is a "Foxconn M61PMV am2+/am2" made for windows XP but supports Vista. And ill have to keep this mobo for a while, so whould i go back to XP or go for vista 64.

Help me guys, sorry for my bad english :$