I'm finally upgrading from my half-dead $300 laptop to, what will hopefully, be able to play things like L4D2/TF2, Sanctum, D3, Eve, and at most, Anno 2070. I also like watching HD movies and what not. Here is what I've put together so far, I'll probably be ordering in two weeks. Opinions, advice, and 'this is incompatible with that's please.
My advice is not to get an SSD at your price range, you'll be miserable with only 64GB.. You can get an SSD later if you want, but for now, I would stick to a traditional HDD, or spend a little more for a 120GB.
Figure, in NTFS format, its more like 59GB, and Windows7 is going to take 15GB of that, so it leaves you with no very much room for games as some games can take up 10GB for just one.
if microcenters k series intel chip -50$ off mobo sale is still going on, your better off buying a mobo in store, even though your choices are limited.
the Seasonic m12ii 520w modular performs better, more efficient, same price(disregarding the rebate) and is modular. the corsair cx series isnt the best series for the price in the corsair line, as its quality isn't as high as its competitors in the same range.