If you want to keep the price down, use an i5 3350p and a cheap ish board.
It will handle any game playably for the next 3 yrs, tho you might not get 60 fps in one or two games. If you are not going mad on graphics, this makes even more sense.
It will 'surfice ' to the point of grinning chops.
I doubt there is anything it wont minimum at 30 fps on reasonable settings. .
BTW, tho locked, it can be turned up to 3.7 gig in turbo boost.