Help with Configuration

hello, I'm Farly new to computers, and i am looking for something that can play the latest games in high quality without many problems, this is my config so far, looking to spend around $3,500, maybe a little more, please input anything you think would be helpful, thanks a lot!

Total Price with Instant Savings: $3,519.00

Specifications:
Chassis: Cooler Master HAF 932
Exterior Finish: - Standard Factory Finish
Interior Finish: - Standard Factory Finish
Power Supply: 1000W Corsair HX (Dual/Triple/Quad SLI Compatible)
Processor: Intel Core 2 Quad Q9550 2.83GHz (1333MHz FSB) (12MB Cache)
Motherboard: nVidia 790i Ultra Core 2 Quad (nForce 790i Ultra SLI) (DDR3 Only)
System Memory: 4GB DDR3 1600MHz OCZ Platinum Edition
Card Reader: - No Thanks
Hard Drive 1: 300GB Western Digital VelociRaptor (10K RPM) (16MB Cache) (Extreme Speed)
Hard Drive 2: - No Thanks
Raid Option: - No Thanks
Hard Drive 3: - No Thanks
Optical Drive 1: DVD±R/RW/CD-R/RW (DVD Writer 20x / CD-Writer 48x)
Optical Drive 2: DVD-ROM/CD-ROM (DVD Reader 16x / CD Reader 40x)
Wireless Access: High Speed Network Port (Supports High-Speed Cable / DSL / Network Connections)
Video Card: 2x SLI Dual (NVIDIA GeForce GTX 280 1GB) (Includes PhysX Technology)
TV Tuner: - No Thanks
Sound Card: Razer Barracuda AC-1 (Recommended)
Extreme Cooling: Air Cooled Stage 3 WindTunnel (Copper Heatpipe Heatsink & Additional Case Fans)
Internal Lighting: Blizzard Internal Lighting (Red Edition) (Cold Cathode Tubes)
Modifications: - No Thanks
Boost Processor: - No Thanks, Please do not overclock my processor
Boost Video Card: - No Thanks, Please do not overclock my video card(s)
Boost 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 (64-Bit Edition) (For Enthusiasts)
Restore Kit: Digital Storm Specialized Recovery System (DVD Image Based)
Protection: - No Thanks
Office: - No Thanks
Benchmarking: - No Thanks
Install/Test Game: - No Thanks
LCD Display: - No Thanks
Surge Shield: - No Thanks
Speakers: - No Thanks
Keyboard: Microsoft Multimedia Desktop 2.0 (Multimedia Keyboard + Optical Wheel Mouse)
Mouse: - No Thanks my keyboard comes with a mouse
External Storage: - No Thanks
Warranty: 3 Year Platinum Care Extended Parts & Labor Warranty

yeah, i was thinking about that, but i wasn't sure if i really needed it or not.

Thanks for the info .. do you know of any problems with water cooling as far as leakage ?

i have a question about how that works thought if you don't mind, i mean, how do i go about running games when i'm running the OS off another HDD? sorry for the stupid question but, i'm new to all this ha ha.

when you install the game, you will be asked whhere to install, point to your second drive and the game will install itself there