another thing to factor in is weather you want to go full hardware (KVM switch and multiplexer) or software to broadcast to all the computers. vetra has an 8 port KVM switch and multiplexer for about $360+, probably the cheapest one around.

as for the computers you put together... well.. i would have thought you were going to start 25 boxing. you can easily make a computer more then capable of boxing 1 or 2 instances of WoW for under $500. just some food for thought. also go dual or single core. 2G of RAM is enough to run 1 instance but RAM is so cheap you might as well get 4G if you ever decide to go 10 boxing. you don't have to buy a GPU, there are plenty of MoBo's out there with onboar graphics that can handle 1 or 2 instances of WoW for around $150. you would probably only need a 400w PSU to run the slave machiens, maybe less. if you want a nice, cheap case, get the Antec 300. if you are only going to be using these for wow then you only need an 80G HDD but for only like $10 more you can get a 160G one and that will be just fine. you only need like 17" monitors, you can find those easy for around $80, maybe less.

basicly you are spending WAY too much for what you want. wow is not a very graphicly demanding game. it can run smoothly on just about anything.

Hope this helps some ^_^

~YYF