This is my first system build and here are my specs:
CPU |AMD Phenom II X4 975 3.6GHz Quad-Core Processor $149.99
CPU Cooler |Cooler Master DK9-7E52A-0L-GP $9.99
Motherboard |Asus Crosshair V Formula ATX AM3+ Motherboard $219.99
Memory |G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory $59.50
Video Card |Sapphire Radeon HD 6870 1GB Video Card $149.99
Case |Raidmax Hurricane (Black) ATX Mid Tower Case $34.99
Power Supply |Diablotek 600W ATX12V Power Supply $28.99
Optical Drive |LG GH22NS90B DVD/CD Writer $15.99
I already have a 2TB external drive and a 23 in monitor is it a good build for the price im paying?
The number one rule is NEVER SKIMP ON A POWER SUPPLY! The power supply is the heart of your computer. You want something that is reliable and won't fail on you. If it fails, it could potentially destroy your computer. You can go with a cheaper motherboard and CPU, but NEVER EVER on a cheaper PSU.
Any of the power supplies listed in either thread are plenty for your listed specs. You only need a good 500w unit. Of the 4 recommended by myself and Dragon I would rate the Seasonic, XFX and PC Power and Cooling all about equal with the OCZ a small step down. All are good enough to recommend.
I agree with anort. AMD recommends a 500W power supply for their graphics cards. You may want more for CF or SLI, but a 500W is more than enough for one card and the Seasonic PSU will probably perform better than it is rated. TBH, you can probably CF with a 520W PSU.