Re: Upgrading for BF3 (clueless)
z44 you have near enough the same rig as i do. The only thing that needs upgrading right now is your operating system. When Nvidia release the 6 series GPU's go for one of them chances are 1 GTX 680 will blow away 2 GTX 580's.
You can enjoy BF3 at medium/high settings at around 60 fps with your sli GTX285's, you just need to update the aging xp to win7x64 and maybe upgrade to 6gb of RAM.