multiple sound cards windows 7

How can I run multiple instances of the same application? (video games)?
I really want to learn to run the same game mode 4 times (in windowed, of course.) WoW specifically, but also some others. Do I need a 3rd party program, or is it even possible? And dont worry about my system SPECT, im sure i can handle anything. 3.2GHz Intel i7 extreme 8mb Chache 12GB DDR3 ultra low latency RAM 2.1V Thurs Thermaltake Bigwater liquid cooling system dual GTX295 (hehe not X) cheap creative-fi Fatality 7.1 Hi-def sound card please help, as I have a war clans to come forward and I want to be able to play all 4 of my lvl 80 WoW accounts at the same time (and for those who might wonder, I had to put in place for 2 years to get my specifications, and it took me over a year to get all 4 of my WoW accounts)
You could do with a virtual desktop or three, try VMware Fusion is free and works well. Virtual offices are a lot of running, but it seems that you have the equipment to cope. Also, if you plan on doing this regularly I would recommend you get four monitors. With two video cards and the money to buy all the equipment on which it should not be a problem, lol.
Call Of Duty Modern Warfare 2 | On Pentium 4 & HD3850AGP | Spec Ops