Rig Setup, any thoughts?

Here's my rig that i planned out, with included specs:

Total Price with Instant Savings: $4,330.00

Direct Load URL: http://www.digitalstormonline.com/comploadsaved.asp?id=107454

Specifications:
Case: Digital Storm Twister ULTRA (Black Anodized Aluminum Finish)
Power Supply: 620W Corsair HX (Dual SLI Compatible) (Silent Edition)
Processor: Intel Core 2 Quad Q6600 2.4GHz (1066MHz FSB) (8MB Cache)
Motherboard: nVidia 680i Core 2 Quad (By: eVGA) (nForce 680i SLI) (A1 Revision)
Memory: 4GB DDR2 Corsair at 800MHz XMS2 (Dual Channel) (Extreme-Performance)
Floppy / Card: - No Thanks
Hard Drive 1: 74GB Western Digital Raptor (10K RPM) (8MB Cache) (SATA) (Extreme Speed)
Hard Drive 2: 500GB Western Digital (16MB Cache) (7200 RPM) (SATA)
Raid Option: - No Thanks
Hard Drive 3: 500GB Western Digital (16MB Cache) (7200 RPM) (SATA)
Optical Drive 1: DVD-ROM/CD-ROM (DVD Reader 16x / CD Reader 40x)
Optical Drive 2: DVDｱR/RW/CD-R/RW (DVD Writer 20x / CD-Writer 48x)
Network Card: Linksys Wireless-N 300Mbps (Supports 802.11n/g/b)
Video Card: 2x SLI Dual (nVidia GeForce 8800GTS 640MB (By: eVGA) (PCI-Express)
TV Tuner: - No Thanks
Sound Card: Creative Labs Sound Blaster Audigy SE (Up to 7.1 Channel)
Physics Card: Ageia PhysX P1 128MB
Cooling: Liquid Chilled CPU & Video Cards (Madusa Purple Liquid)
Case Lighting: Blizzard Internal Lighting (Blue Edition) (Cold Cathode Tubes)
Round Cables: Enhanced Interior Air Flow (Optical Drive & Floppy Cables (Blue Edition)
User Manual: Personalized Platinum Digital Storm Binder (Includes Paperwork/Benchmarks/CDs/Manuals)
Overclock Processor: Yes, Overclock the processor as much as possible with complete stability
Overclock Video Card: Yes, Overclock the video card(s) as much as possible with complete stability
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 Ultimate
Restore Kit: Digital Storm Specialized Recovery System (DVD Image Based)
Protection: McAfee Internet Security (Includes: AntiVirus, FireWall and AntiSpyware)
Office: - No Thanks
Benchmarking: - No Thanks
Pre-Install Game: - No Thanks
LCD Display: - No Thanks
Surge Shield: - No Thanks
Speakers: - No Thanks
Keyboard: Logitech G15 Gaming Keyboard
Mouse: Logitech G7 Laser Cordless Mouse (High-Speed Gaming Grade)
Warranty: 3 Year Platinum Care Extended Parts & Labor Warranty
Support: Lifetime Toll-Free Platinum Care Technical Support

My question to those of you who know what you're doing better than i...is this good for the money?  If not, how could i make it cheaper without taking a huge performance hit in games?

4GB of ram...in a 32 bit OS.  Does that work? I had heard somewhere that it didn't and that i needed a 64 bit OS.  Any recommended way to change that setting so that all 4GB work in a 32 bit OS?

THe dual 640mb cards were cheaper than dual 512s...not sure why.  I have a 30" LCDx2 and plan on running Crysis, etc, and still be stable (playing at at least medium settings) for the next 4 years or so (assuming we're not using Water as RAM that near in the future or something).  Anyway, do these cards work?  Any thoughts?

I'm horrible at hardware so i'd rather thave them overclock it than me do it.  I once nuked a motherboard right out of it's packaging

For any game enthuisiasts out there, if you want, build a rig and posty a linky ^^

(I'm not sure on shipping options but i live overseas, so i'll problably have it routed here, but i'm glad they offer water cooling because it gets extremely hot sometiems where i am)

  I would upgrade the RAM to the 1066 mhz Dominator ( some apps maybe able to utilize the extra bandwidth).

  Put the 2 500GB HDD in a Raid 0 array for better performance. May need to think about the Raptor though, it's fast but from what i heard the Raptor tends to die faster than a standard HDD.

  Get rid of the PhysX card, it's not going anywhere. Remember the Voodoo card ???

  Don't need the McAfee security suite. There are better programs (ZoneAlarm Security Suite) and most are free too if you want to install separate programs.

@Solo - Good call.

Originally posted by Samuraiken Another question: Processors: Intel Core 2 Quad Q6600 2.4GHz (1066MHz FSB) (8MB Cache) or Intel Core 2 Duo E6850 3.00 GHz (1333MHz FSB) (4MB Cache)   The price difference being a measly $16.  It's faster, but lacking cores, and while the FSB is larger, the L2 is lower...i'm not an expert or anything but i remember pulling information in (via osmossis on PC Gamer magazines under the pillow, of course) that L2 is a bit more important than the processor speed itself due to bottlenecks and whatnot.  Feel free to nuke the hell out of this post if i'm wrong...that's what i came here for!  I'm going for the Quad, i was just curious what the differene was (learning while buying, awesome).

I would have to agree that L2 cache is more important than the speed. You can't add more cache but you can easily adjust the core speed.

Don't worry about the CPU much as the GPU is the major factor in determining gaming performance.

where at in Japan

Dave from DS emailed me and said he'd let me know what the charge is.  Hopefully it's not much but...lol compared to how much each rig costs it's nothing, right?