FYI,

With the above system I described with 0 overclocking, I got 5 wow windows...

4- 512x400
1 - 2048x1600

Stable framerate of 15-30fps on all of them. Throtteling down back windows to 15fps, resulted in a more stable 30fps on the main 2048x1600 window.

Ram used was approx - 3.3gb of physical. Therfore I would recommend 8gb of ddr3 ram for 10 windows.

Boot time was very fast, I would say from pressing start, to seeing 5 wow windows was <10sec.