Looking for a 5-boxing system that has good performance (even in Dalaran) and will last a few years.

Using this community's advice, I put together the following system on Cyberpower. BTW, I plan on using a 30" monitor that I have for all 5 clients using a Keyclone maximizer setup.

I'm looking for feedback on anything I'm missing in this system or obvious things you would change to make the system a better investment.

A few specific questions:

Should I be telling them to overclock the processor or videocard?

Is the power supply adequate?

Is Vista Basic good enough?

I'm not planning on adding any must-have data on this computer (using the old one for photos and such), so I don't need a seperate "data drive", right?

The price came out to $1560, but I don't mind spending a bit more if I can get the bang for the buck.

Lastly, is Cyberpower a good company to order the computer from? Are there others that you would recommend I put together a similiar configuration on for comparison?

Thanks so much for taking some time to take a look!

CASE: Apevia X-Supra Gaming Mid-Tower 420W Case (G Type Black Color with Side-Window)
Neon Light Upgrade: NONE
Extra Case Fan Upgrade: Default case fans
POWER SUPPLY Upgrade: STANDARD CASE POWER SUPPLY
CPU: Intel® Core™ i7-920 2.66 GHz 8M L3 Cache LGA1366
COOLING FAN : Intel LGA1366 Certified CPU Fan & Heatsink
MOTHERBOARD: MSI X58 Platinum Intel X58 Chipset SLI/CrossFireX Mainboard Triple-Channel DDR3/1600 SATA RAID w/ eSATA, Dual GbLAN, USB2.0, IEEE1394a, &7.1Audio
MEMORY: 12GB (6x2GB) PC1333 DDR3 PC3 10666 Triple Channel Memory (Corsair or Major Brand)
VIDEO CARD: NVIDIA GeForce GTX260 896MB 16X PCI Express (Major Brand Powered by NVIDIA)
VIDEO CARD 2: NONE
VIDEO CARD 3: NONE
LCD Monitor: NONE
2nd Monitor: NONE
HARD DRIVE: Extreme Performance (RAID-0) with 2 Identical Hard Drives (1TB (500GBx2) SATA-II 3.0Gb/s 16MB Cache 7200RPM HDD)
Data Hard Drive: NONE
USB PORTABLE DRIVE: NONE
Optical Drive: (Special Price) LG 20X DVD±R/±RW + CD-R/RW DRIVE DUAL LAYER (BLACK COLOR)
Optical Drive 2: NONE
SOUND: HIGH DEFINITION ON-BOARD 7.1 AUDIO
SPEAKERS: NONE
NETWORK: ONBOARD 10/100 NETWORK CARD
MODEM: NONE
KEYBOARD: (Keyboard & Mouse Combo) Logitech Cordless Desktop MX 3200 Laser Cordless Keyboard & Mouse Combo
MOUSE: XtremeGear Optical USB 3 Buttons Gaming Mouse
Extra Thermal Display : NONE
Wireless 802.11B/G Network Card: NONE
Flash Media Reader/Writer: None
Cable Wiring: None
Rounded Cable: None
VIDEO CAMERA: NONE
PRINTER: None
PRINTER CABLE: None
IEEE CARD: NONE
USB PORT: Built-in USB 2.0 Ports
FLOPPY: NONE
OS: Microsoft® Windows Vista™ Home Basic w/ Service Pack 1 (64-bit Edition)
FREEBIES: None
Media Center Remote Control & TV Tuner: None
SERVICE: STANDARD WARRANTY: 3-YEAR LIMITED WARRANTY PLUS LIFE-TIME TECHNICAL SUPPORT
RUSH SERVICE: NO; READY TO SHIP IN 5~10 BUSINESS DAYS