Hey Sret43rg,
Still not made your mind up yet? Get the i5 and 660, like sunius said it only really effects high resolutions with lots of AA, which is kind of redundant anyway as you wont need maxed out AA at those res's...
The only other suggestion I have is to get the unlocked i5, I know you really don't need it now, but once your processor starts to age it could give you that boost you need