I need advice on this build.

This is what you could do to get the price under a thousand PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor ($239.99 @ Newegg)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($38.98 @ Newegg)
Motherboard: ASRock Z77 Extreme4 ATX LGA1155 Motherboard ($134.99 @ Newegg)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($46.99 @ Newegg)
Hard Drive: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($89.99 @ Newegg)
Video Card: Sapphire Radeon HD 7850 2GB Video Card ($266.97 @ Newegg)
Case: NZXT Apollo Black NP ATX Mid Tower Case ($67.98 @ Newegg)
Power Supply: SeaSonic 620W ATX12V / EPS12V Power Supply ($89.99 @ Newegg)
Optical Drive: LG GH24NS90 DVD/CD Writer ($17.99 @ Newegg)
Total: $993.87
(Prices include shipping and discounts when available.)
(Generated by PCPartPicker 2012-06-10 13:51 EDT-0400)
 

bigboss017

Honorable
Jun 10, 2012
10
0
10,510
whats the diffrence between the motherboard you posted and the one i picked. also i want to do crossfire later on, which wattage should i get and does it have to have crossfire ready?