Quick update, if anyone's wondering - game runs mostly fine on Core 2 Duo E8400 @3GHz, 4GB RAM and GTX 560 Ti (haven't checked framerates with Afterburner, but I'll update again if and when I check it). Although it stutters, since I put everything on High, and AA on 2x, but it's playable. Gotta turn down few settings and see if that helps with the stuttering, but since I'm weird and crazy, I can play it like this and I will most probably play it like this, without turning down most of the settings.
So, anyways, which store's got the best deal to preorder it on PC?