$800 Gaming Build

[Eternium]

Oh look another 1st time builder! Anyway, tried to keep things under $800 (actually went a little bit over, but it doesn't matter too much). Just want to see if there is anything I could change to make this build better. Like most other people new to building, I will be playing Starcraft 2, Diablo 3, various RTS games, etc. Already have a monitor (a TV with 1360x768 resolution max), keyboard and mouse.

CPU/PSU: Newegg.com - Computer Parts, PC Components, Laptop Computers, LED LCD TV, Digital Cameras and more!

MOBO/RAM: Newegg.com - Computer Parts, PC Components, Laptop Computers, LED LCD TV, Digital Cameras and more!

GPU/OS: Newegg.com - Computer Parts, PC Components, Laptop Computers, LED LCD TV, Digital Cameras and more!

Case/DVD Drive: Newegg.com - Computer Parts, PC Components, Laptop Computers, LED LCD TV, Digital Cameras and more!

HD: Newegg.com - SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive

EDIT: One thing I'm sort of worried about is the PSU not being strong enough...I tried neweggs PSU calculator, but obviously being a new card, the gtx 460 isn't listed...

 

[Slaymate]

I would go with this mobo/ram combo. It cost a little more but those particular G.Skills you have are Ultra Slow.
Newegg.com - Computer Parts, PC Components, Laptop Computers, LED LCD TV, Digital Cameras and more!

The Corsair 550 watt is probably enough, here's a 650 watt combo if it will make you feel better.
Newegg.com - Computer Parts, PC Components, Laptop Computers, LED LCD TV, Digital Cameras and more!

 

[Eternium]

I would go with this mobo/ram combo. It cost a little more but those particular G.Skills you have are Ultra Slow.
Newegg.com - Computer Parts, PC Components, Laptop Computers, LED LCD TV, Digital Cameras and more!

The Corsair 550 watt is probably enough, here's a 650 watt combo if it will make you feel better.
Newegg.com - Computer Parts, PC Components, Laptop Computers, LED LCD TV, Digital Cameras and more!

Alright, switched that combo out for that one. Also switched down to a 5770 after looking into things in favor of not overspending (I will be playing games at 1360 x 768 anyway). This puts my total a little under $800. Anyone else have anything to add?