With those specs i'd kick PS3's arse. Although i'm currently considering a PS3/PC upgrade i'm going for PS3 as i'm on an AGP system and require a FULL ugrade which is out of the question at the moment.
like others pointed out, those sys specs will pwn a ps3 several times over. however, unless you're a true gaming enthusiast, stick with the ps3. if you get a new pc, don't think you can just dole out the money and be done with it. newer, more resource-hungry games are always being developed and you'll find yourself truly questioning whether or not the entertainment from gaming is truly worth it. it's worth it to me, though.
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