My buddy is debating on using 64bit vista instead of 32bit. Currently are there issues with SLI and 64bit vista? Also for gaming 32bit would be better I am thinking. For 64 bit nv is having troubles with SLI if I remember correctly. Can you guys sum it up in here why 32bit is better then 64bit for gaming espicially with SLI? Thanks. I am giving him this link. Post away gents!