if i was building a system now for myself i would sit on my money till dec or jan. two things i would hold out for the nvidia 660ti.
if the hype is right it going to be a fast card for 250.00 price point. also there going to have the new ib for the 2011 mb near the end of this year and haswell is dropping about the same time too. the new haswell dont use the same pin outs and ib so there a whole new set of mb that will have to drop. the i5 lines are a great cpu i build myself a new rig in April with the 3540. But im not a hard core gamer i have this system for 3-4 years. my old 775 system gave it to a friend that had an even older dell. I dont want to see you buy the i5 then 3 months latter a new cpu drops that 10-20 percent faster for the same price.