The machine I am building

I am planning to build machine with following configuration:
1. AMD Phenom II X4 940
2. MSI K9A2 Platinum AM2+/AM2 AMD 790FX ATX AMD Motherboard
3. Two hard drive in RAID-0 config

1. Western Digital Raptor WD740ADFD 74GB 10000 RPM SATA 1.5Gb/s Hard Drive
2. Western Digital Caviar Black WD5001AALS 500GB 7200 RPM SATA 3.0Gb/s Hard Drive

4. OCZ Platinum 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory Model OCZ2P10664GK

I never build the gaming rig before and I am not sure whether this config will work or not.
Anyone have suggestions/comments?

And please suggest video card compatiable with above config.

ill suggest you gtx295,gtx285,hd4850,hd4870,cost cutting gforce 9 platform

http://forums.techarena.in/monitor-v...ds/1086910.htm

http://forums.techarena.in/monitor-v...ds/1084581.htm

http://forums.techarena.in/monitor-v...ds/1115367.htm

http://forums.techarena.in/monitor-v...ds/1111467.htm

http://forums.techarena.in/monitor-v...ds/1122040.htm

http://forums.techarena.in/motherboa...am/1105829.htm