If you were using Linux this could be done very easy using a program called Userful. It allows you to turn 1 pc into up to 8 workstations. But it requires a linux OS. There is another windows based program called SoftXpand, this program works very well. I am currently installing it in 3 labs of 22-25pcs at work. I will replace a complete lab of 22 with 4. It seems to work pretty well for graphics, but I have not tried anything like wow. The only problem is the software costs $60 per seat, so you would be spending $120 to run the two workstations off your one pc. If you want to check out the trial version goto www.miniframe.com you can download it and use it without any restrictions I believe for 80 hours.