Hmm, im not going to actually build this but i wanted to speculate and push the idea out to everyone else and get your input.

I was thinking the other day that with current hardware it might be possible to 10-box on one machine. Now the specs seem right, but the only thing that would drag this back would be the processor.But i wanted to get your opinions on this and see what you think this machine could handle, and how many instances of wow it could run simultaneously.

Motherboard EVGA 132-CK-NF79-A1 LGA 775 NVIDIA nForce 790i Ultra SLI DDR3
Processor Intel Core 2 Extreme QX9650 Yorkfield 3.0GHz 12MB L2 Cache LGA 775 130W Quad-Core Processor
Memory 2x CORSAIR 4GB(2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Dual Channel Kit Desktop Memory
Video Cards 2x EVGA 01G-P3-N891-AR GeForce 9800 GX2 1GB (512MB per GPU) 512-bit (256-bit per GPU) GDDR3
Hard Drives 4x Western Digital Raptor WD1500ADFD 150GB 10,000 RPM 16MB Cache SATA 1.5Gb/s
Power Supply Thermaltake Toughpower W0133RU ATX12V / EPS12V 1200W Power Supply

Now this build is extremely expensive, but i forsee it having the potential to run up to 10 instances of wow, if not more. Granted it would take alot of cooling, up to water cooling.

Basically it would run 3 instances each of wow on 3 of the hard drives and 1 on the other. And the processor may have to be slightly overclocked to work.

What is everyones thoughts?