Shadow_07 said:The only thing really to look forward to in Haswell is the updated integrated graphics
If I were in your shoes I'd get a slightly higher spec Ivy Bridge I5 like the 3550 or the 3570 hell maybe even a K edition CPU, There isn't much change in Haswell outside of the graphics in my opinion.
I agree with the statement above, but he forgot to touch on, at least fom what I have read; Haswell will also have a TDP that can be changed for better efficiency. It is more of an increase in performance per watt CPU rather than an overall performance gain from what I have read.
I also agree with the other user that, at least for games of the caliber you wish to play, you will want a better GPU, 660ti or 7950 minimum you can get both for the $300 dollar price range, at least it is in which nation I reside. Try to read through reviews when selecting GPU's. For some reason, at least from my experience, those threads always turn into Nvidia V.S. AMD quarrels and rantings.
My advice is that you get a CPU with an unlocked multiplier, Haswell or Ivy, it will not matter very much which you choose.