Will this build work well?

APPROXIMATE PURCHASE DATE: Today BUDGET RANGE: 1000-1200

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Gaming, Movies, Internet, Word Processing

PARTS NOT REQUIRED: Monitor, Mouse, Keyboard, Optical Drive, HDD,2x BFG Geforce GTS 250's, and Thermaltake TR2 RX 650w PSU
(http://www.newegg.com/Product/Product.aspx?Item=N82E168...)

PREFERRED WEBSITE(S) FOR PARTS: newegg.com tigerdirect.com

PARTS PREFERENCES:

EVGA X58 Classified 4-way SLI
(http://www.tigerdirect.com/applications/SearchTools/ite...)

Cooler Master HAF X
(http://www.tigerdirect.com/applications/SearchTools/ite...)

i7-930
(http://www.tigerdirect.com/applications/SearchTools/ite...)

G-Skill Ripjaw Series 4gb
(http://www.newegg.com/Product/Product.aspx?Item=N82E168...)

OVERCLOCKING: Maybe SLI OR CROSSFIRE: Yes

MONITOR RESOLUTION: 1920x1080

ADDITIONAL COMMENTS: My main concern is whether I'll be able to run 2x GTS 250's on the 650w Thermaltake PSU, or if I need to upgrade the PSU as well. Also the i could use some verification on the RAM compatibility. Thank you for any help.