Questions about possible new config

I would appreciate any comments about the new system I'm planning to buy, and also have a few questions. Note this system will be mostly used to play strategy games such as Spore (when it comes out), The Sims 2, Rollercoaster Tycoon 3, Age of Empires 3... I don't play a lot of action games like shooters or RTS, but I might play car racing games or something like Flight Simulator X.

So, this is what I'm thinking about so far (questions below):

Case: Digital Storm Twister EXTREME (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 LT Core 2 Quad (By: eVGA) (nForce 680i SLI) ?
Memory: 2GB DDR2 Corsair at 1066MHz Dominator (Dual Channel) ? (Extreme-Performance)
Floppy / Card: - No Thanks
Hard Drive 1: 500GB Western Digital (16MB Cache) (7200 RPM) (SATA)
Hard Drive 2: 500GB Western Digital (16MB Cache) (7200 RPM) (SATA)
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)
Network Card: High Speed Network Port (Supports High-Speed Cable / DSL / Network Connections)
Video Card: nVidia GeForce 8800GTX 768MB (By: eVGA) (PCI-Express)
TV Tuner: - No Thanks
Sound Card: Creative Labs Sound Blaster X-Fi XtremeGamer (Up to 7.1 Channel) (Recommended)
Physics Card: - No Thanks
Cooling: Air Cooled Stage 2 (Silent Artic Cooling Heat-sink (Copper Heatpipes)
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: - 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: Dual Boot (Windows XP Home & 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: Acer 22 inch (Widescreen) (Black) (High-Performance Gaming Display)
Surge Shield: - No Thanks
Speakers: Logitech 2.1 System (Black Edition) (Model R20) (Includes Subwoofer)
Keyboard: - No Thanks
Mouse: - No Thanks

Questions:

Case:
Not sure which case to pick. I was going to go with the PRO case, but I'm wondering if it's going to have enough air flow for the CPU and graphic card I picked? Or should I go with the ULTRA or EXTREME case? (that's a lot of extra $ for a case though...)
Also, I would like to know if either of those cases can be opened without having to put the computer on its side?
Which would you recommend?

Power Supply:
Is 620W going to be enough, as long as I don't add any other components? Or should I go a little higher in case I'd want to add something?

Processor:
I'm hesitating between the Intel Core 2 Quad Q6600 at 2.4 GHz, and the Duo at either 2.33 or 2.66 GHz. Not really sure I need a Quad core for what I'm going to use this computer for (mostly gaming).

Motherboard:
What's that "A1 revision" on the nVidia 680i Core 2 Quad motherboard? Do I need that? Or should I pick another motherboard?

Memory:
Vista 32-bit cannot see above 2GB of RAM, correct?

OS:
Anything/problems I should be aware about dual-boot systems? I was delighted to find out DS offered this option, and that I could still have XP around on top of Vista.

Any other comments/suggestions/recommendations appreciated.

I also want to thank Digital Storm for having this public forum available. It says a lot about how confident they are about their products and service, for good reason I'm sure. This definitely helps making me trust a company I didn't know anything about prior to my recent computer hunt.

Case:
Not sure which case to pick. I was going to go with the PRO case, but I'm wondering if it's going to have enough air flow for the CPU and graphic card I picked? Or should I go with the ULTRA or EXTREME case? (that's a lot of extra $ for a case though...)
Also, I would like to know if either of those cases can be opened without having to put the computer on its side?
Which would you recommend?

Originally posted by sundowner Originally posted by Kelly Memory: Vista 32-bit cannot see above 2GB of RAM, correct? It see's it but it doesn't/cannot use it.   So if I have a 32-bit and 3 gigs of ram, the computer would run as though it had 2?

Isn't it something around 3.2ish GB that a 32 bit OS can use?

I know there's the calculation out there somewhere; I'm just too lazy to find it :P

the ultra, you can just slide the side panel right off, its real easy.

You don't need the A1 for a quad-core, but the A1 is the best motherboard for overclocking unless you wanted to go with the Asus maximus(which doesn't have sli).

i thought the ram issue with vista (and xp) was that you could run upto 4gig but it would take off stupid things like video ram etc?