help on my new build pc

HI JUST SETUP THIS BUILD ON A DS SYSTEM . I DONT PLAY IN HIGH RESOLUTIONS 1200X1080 HOW DOES THIS LOOK? ALSO ANY GUESS BEFORE GAMES GO TO QUAD CORE?? UPGRADING A CPU LATER WOULD BE A EASY UPGRADE AND VIDEO CARD LATER .ANY SUGGESTIONS WOULD BE HELPFUL. ALSO RUNNING 2 VIDEO CARDS IS 750 W PSU ENOUGH?

Case: Digital Storm 850Si (Black Anodized Aluminum Finish)
Power Supply: 750W Corsair HX (Dual SLI Compatible) (Silent Edition)
Processor: Intel Core 2 Duo E8400 3.00GHz (1333MHz Front Side Bus) (6MB Cache)
Motherboard: nVidia 780i Core 2 Quad (nForce 780i SLI)
Memory: 4GB DDR2 Corsair at 1066MHz Dominator DHX (Extreme-Performance)
Floppy / Card: - No Thanks
Hard Drive 1: 320GB Western Digital (16MB Cache) (7200 RPM) (SATA)
Hard Drive 2: - No Thanks
Raid Option: - No Thanks
Hard Drive 3: - No Thanks
Optical Drive 1: DVD-ROM/CD-ROM (DVD Reader 16x / CD Reader 40x)
Optical Drive 2: DVD±R/RW/CD-R/RW (DVD Writer 20x / CD-Writer 48x) (LightScribe Edition)
Network Card: High Speed Network Port (Supports High-Speed Cable / DSL / Network Connections)
Video Card: nVidia GeForce 9800GTX 512MB
TV Tuner: - No Thanks
Sound Card: Motherboard Multi-Channel High Definition Audio
Physics Card: - No Thanks
Cooling: Air Cooled Stage 3 WindTunnel (Copper Heatpipe Heatsink & Zalman Case Fans)
Case Lighting: Blizzard Internal Lighting (Blue Edition) (Cold Cathode Tubes)
Round Cables: Enhanced Interior Air Flow (Optical Drive & Floppy Cables (Red Cables)
User Manual: Personalized Platinum Digital Storm Binder (Includes Paperwork/Benchmarks/CDs/Manuals)
Overclock Processor: - No Thanks, Please do not overclock my processor
Overclock Video Card: - No Thanks, Please do not overclock my video card(s)
Overclock Memory: - No Thanks, Please do not overclock my memory
Tweak Windows: - No Thanks, Please do not tweak the services on the operating system
Windows OS: Microsoft Windows Vista Home Premium
Restore Kit: Digital Storm Specialized Recovery System (DVD Image Based)
Protection: - No Thanks
Office: - No Thanks
Benchmarking: - No Thanks
Pre-Install Game: - No Thanks
LCD Display: - No Thanks
Surge Shield: - No Thanks
Speakers: - No Thanks
Keyboard: - No Thanks
Mouse: - No Thanks
Warranty: 3 Year Platinum Care Extended Parts & Labor Warranty
Support: Lifetime Toll-Free Platinum Care Technical

At 1280x1080 you wouldnt need a second 9800GTX, but i suppose if you upgrade later, the 750W does give you the power to add a 2nd. All around good system build, youll be able to overclock it well.