Hi, Im trying to figure out ho wmany Instances of WoW this single Box can run with good FPS and MS. Here are the specs"

Processor:
Intel® Core™ 2 Duo E8400 3.00GHz 6MB Cache 1333MHz FSB

Power Supply:


Alienware® 750 Watt Multi-GPU Approved Power Supply


Graphics Card:


Single 512MB NVIDIA® GeForce® 9800 GT

Memory:


2GB DDR3 SDRAM at 1066MHz - 2 x 1024MB

Motherboard :


Alienware® Approved NVIDIA® nForce® 790i Ultra SLI™ Motherboard
Includes PCI-Express 2.0, DDR3 Memory, and Support for Intel 1600 FSB

OS:


Windows Vista® Home Premium with Service Pack 1 – DirectX 10 Ready!

Hard Drive:


250GB SATA 3Gb/s 7,200RPM 16MB Cache

Sound Card:
High-Definition 7.1 Performance Audio

Yes, it is an Alienware im considering buying, since I dont know alot about building computers and dont wanna mess up. It seems to me one powerfull box will be easier to get then building 3 Box's (already have 2).