New Config. Please Help

 

  Case:   Digital Storm Twister PRO (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 800MHz Dominator (Dual Channel) (High-Performance) [+72]
  Floppy / Card:  - No Thanks
 Hard Drive 1:  320GB Western Digital (16MB Cache) (7200 RPM) (SATA)
 Hard Drive 2:  - No Thanks
 Raid Options:  - No Thanks
 Hard Drive 3:  - No Thanks
 Optical Drive 1:   DVD±R/RW/CD-R/RW (DVD Writer 20x / CD-Writer 48x) (LightScribe Edition) [+25]
 Optical Drive 2:   - No Thanks [-41]
 Connectivity:  High Speed Network Port (Supports High-Speed Cable / DSL / Network Connections)
 Video Card(s):  2x SLI Dual (nVidia GeForce 8800GT 512MB (By: eVGA) (PCI-Express)
 TV Tuner:  - No Thanks
 Sound Card:  Motherboard Multi-Channel High Definition Audio (7.1 Channel)
 Physics Card:  - No Thanks
 Cooling:  Air Cooled Stage 2 (Silent Artic Cooling Heat-sink (Copper Heatpipes) [+49]
 Case Lighting:  Blizzard Internal Lighting (Blue Edition) (Cold Cathode Tubes) -
 Cabling:  - No Thanks
 User Manual:  Personalized Platinum Digital Storm Binder (Includes Paperwork/Benchmarks/CDs/Manuals)
 Processor:  - No Thanks, Please do not overclock my processor
 Video Card(s):  - No Thanks, Please do not overclock my video card(s)
 Memory:  - No Thanks, Please do not overclock my memory
 Windows OS:  - No Thanks, Please do not tweak the services on the operating system
 Windows OS:  Microsoft Windows Vista Home Premium [+22]
 Recovery Kit:  Digital Storm Specialized Recovery System (DVD Image Based)
 Protection:  - No Thanks
 Office:  - No Thanks
 Benchmarking:  - No Thanks
 Install Game:  - No Thanks
 Display:  - No Thanks
 Surge Shield:  - No Thanks
 Speakers:  - No Thanks
 Keyboard:  - No Thanks [-29]
 Mouse:   - No Thanks [+0]

 

I also have some questions to ask.

1/  The 620 W PSU offered by DS look a little bit " weak" for a SLI config.

      Should I go for the 750W PSU instead?

2/  I have read somewhere in this forum that 2 8800GT will give out a lot

     of heat. But since I do not overclock anything, is the heat an issue for

     this case? From what I know, the Twister Pro Case comes w/only 2

     fans.

3/ I uses High Speed Internet by SBC Yahoo. The antivirus/antispyware

     etc... are from CA. I also have an antispy call Spybot search & destroy.

    Unfortunately, both lack a good firewall. The McAfee offered by DS does

    not work w/ Vista. What kind of Antivirus/Spyware/Firewall you guys

    use for your computer?

 

 

    Thank you very much for your time.