Is this custom gaming PC build all compatible?

Well, i cheked a couple, and it looks ok, but the reality is, that building your own PC, is more costly, vs buying one, right now im spoting a Gateway fx, with 9gb Ram, Nvidia geforce 260x 1gb video ram, intel core i7- running at 3ghz More+ because its overcloked and 1terabyte of Hard drive, etc.. All that for $1000,.... but if u want to have the experience of building and running your own pc, i say go for it!! i did one a couple of years ago...., with the items u listed, for the price, i say u should be good to go, but if u want more bang for your buck, I suggest u buy it