NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO https://www.youtube.com/watch?v=CsHuPxX8ZzQ http://pcpartpicker.com/p/18jWG
I would drop the 7870 crossfire and just go for one 7950 and add another later on. get a xigmatek dark night istead of that seidon. seidons are terrible most aircoolers beat them.
If you're dead set on crossfire, go for it. That case is incredibly horrible to make look tidy. Everything else works together though.
For that price of the 2 cards you could get a nice gtx770 or 7970.
Ive had crossfire before. When it works its very good, when it doesnt its a right pain in the arse as most often than not you are forced to disable the 2nd card in order for things to display correctly.