1 computer will be brutal. I box 4 accounts and am already running a beastly computer. I also box them on higher res, and settings though. If you limit the FPS to < 5 and run the slaves on 600X800 you could do it on the graphics end. What I’m thinking of right now though, it Memory, and hard drive.

You WILL need more than 1 disk if you’re not running something like those 1GB/S (Byte, not bit) PCI-E drives. Even a good SATA SSD won’t be able to handle that much bandwidth. I use 4 disks, 1 for each account. Its overkill, but I have 4, so I use them all.

Memory will be a HUGE issue. Bandwidth and size. Wow can use up to a gig a window on high settings, and ~500Meg on lower settings. If you don’t allow for it to expand to its fullest you will start paging the HD, and with 25 windows doing that… Well… It won’t be pretty. I would say 16GB+ triple channel @ at LEAST 1600.