First time builder

Old comp has died on me and was looking to make my own this time around. Looking to see if this setup is viable for moderate gaming and a long lifespan. Open to suggestions but within a decent budget.

Budget: 600 - 800

Timeline: depending on budget

Reusing: monitor (1440x900) mouse keyboard speakers.

Preferred shop: newegg, but ive got a fry's not too far. But if anyone knows something better it doesnt really matter.

No preference on manufacturer.

No preference on sli or crossfire

Not going to overclock ( most likely)

Case: Rosewill CHALLENGER Black Gaming ATX Mid Tower Computer Case, comes with Three Fans-1x Front Blue LED 120mm Fan, 1x Top 140mm Fan, 1x Rear 120mm Fan, option Fans-2x Side 120mm Fan

Board: ASRock P67 PRO3 (B3) LGA 1155 Intel P67 SATA 6Gb/s USB 3.0 ATX Intel Motherboard

PSU: Rosewill Green Series RG630-S12 630W Continuous @40°C,80 PLUS Certified, Single 12V Rail, Active PFC "Compatible with Core i7,i5" Power Supply

CPU: Intel Core i5-2400 Sandy Bridge 3.1GHz (3.4GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 2000 BX80623I52400

HD: Seagate Barracuda ST31000524AS 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive

RAM: Kingston HyperX Grey Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 Desktop Memory Model KHX1600C9D3X2K2/8GX (X2)

OS: Windows 7 64-bit Home Premium

Again open for suggestions and thank you for the help in advance

case: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Board: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
PSU:http://www.newegg.com/Product/Product.aspx?Item=N82E168...
CPU: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
HD: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
RAM:http://www.newegg.com/Product/Product.aspx?Item=N82E168...
OS:http://www.newegg.com/Product/Product.aspx?Item=N82E168...


Edit: My budget is really up in the air, basically i would like to get another gaming pc asap but as long as i can hold off the more i will have to spend. I also forgot to add the card in because i had been debating over a few but adding this : EVGA 01G-P3-1556-KR GeForce GTX 550 Ti (Fermi) FPB 1GB 192-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card

http://www.newegg.com/Product/Product.aspx?Item=N82E168...