Ok great thanks for you reply , i have been researching the past few hours on this topic and came up with this chart on wikipedia :
As a general rule of thumb for multiboxing 3D games on one PC, you want about one CPU core and at least 1GB of RAM per game instance, and a middle to high grade video card with at least 512MB of RAM on it.
Approximate recommendations
2 instances: 2 CPU Cores, 2GB RAM, 512MB video card
3 instances: 2-4 CPU cores, 3GB RAM, 512MB video card
4 instances: 3-4 CPU cores, 4GB RAM, 512MB video card
5 instances: 4-6 CPU cores, 5GB RAM, 512MB video card
6 instances: 4-6 CPU cores, 6GB RAM, 512MB video card
Is this a little over board on the CPU having 10 cores to run 10 wow instances ? i just looked up prices on cpu's with 10 cores and they arnt cheap , i really want to gather more insight on this before buying something i do not need or overkilling on the CPU if not needed.