My 2 cents... don't get a 3770. An i5 3570K is going to kick ass and save $100. If you really want an i7, get the 3770K.
Don't buy from BestBuy. Check out newegg, ncix, fry's, microcenter, etc. Actual PC stores.
If you aren't getting a graphics card (you don't list one), then you...