AMD X4 build

Alright so im building my first computer and heres what im looking at getting

I already Have Dual L2610NW 25.5inch 1920x1280 Westing house monitors so i think im covered when it comes to displays...

AMD Phenom II X4 955 Black Edition Deneb 3.2GHz
-I hope its as good as it looks to be
MSI 790FX-GD70 AM3 AMD 790FX ATX AMD Motherboard
- i like the board size and FSB seems good
SAPPHIRE 100269OCSR Radeon HD 4890 1GB 256-bit GDDR5 PCI Express 2.0 x16
-Its crossfire so if i want i can double up later
CORSAIR XMS3 DHX 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Dual Channel Kit Desktop Memory Model TW3X4G1600C9DHX
-Start with 4GB Ram and go from there
SUPER TALENT UltraDrive ME FTM32GX25H 2.5" 32GB SATA II MLC Internal Solid state disk (SSD) - Retail
-I was thinking SSD for my OS (windows 7) and for common programs
Western Digital Caviar Black WD1001FALS 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drives - OEM
-A nice 1TB internal to supplement my 1TB external

Now granted I know a little i went with the SSD and tried to max out my load times and well all in all its as fast as i could really get it... Now if you have recomendations on anything please let me know.. oh i have a case and powersupply but im not sure the 630W will be enough... other then that i have DVD tray which is fine (since ill be ussing the SSD for games)