I don't like repeating things I have no proof on, or have just heard other people say, so I won't comment on OCZ's PSUs--I certainly liked their RAM when it was out and like their Vertex SSDs. If you are curious, here is a review on the PSU:
The glaring omission in your build is a mechanical hard drive--I doubt you are storing all those games on the SSD. To keep its speeds up, you should generally leave an SSD about half empty. Moreover, your budget really doesn't support a 256 GB SSD: if you were spending $1500 or more, I could see that, but around $1000, the money is better spent on a better GPU than on a roomier SSD. I suggest you go with a 120 GB SSD.
I've juggled your parts around and saved where I could (mobo, SSD, GPU) and sneaked in a 1TB Caviar Black. I am about $25 under $1000, so feel free to bump the SSD capacity back up if you can stomach the extra $70-80. If you want to replace the case's stock fans, please don't use the CM fans in your original build--go for some good Noctua 120mm fans. They aren't cheap (about $25 a pop), but will last you forever and keep everything cool (and importantly, quiet).
The brands I've picked, I've done so because of good reviews, good personal experiences (esp WD, Asrock, Corsair and Sapphire), good reputation on the 'net, and lastly, a decent price. I've had components from WD and Sapphire fail on me and the RMA process has been very quick and smooth--WD even took back a good HDD along with the bad one so I could keep my RAID 0. As long as the quality of their HDDs is maintained, I am a WD customer for life.