Doing some looking around, if I understand the recommended specs as listed in the various guides on this site. I'm wondering if I couldn't get by with purchasing 4 of these:
Link to Dell
These can be spec'ed up to a nice wow-capable box (once I upgrade the video card to the 256MB NVIDIA GeForce 8600GT-DDR3, which I would be interested in hearing if this is a recommended card or not, the total cost came to around 679 for my final configuration btw), and they total up (for all 4) to about where the running total listed in Xzin's write up is for pc's and monitors. This gets me 4 decent pc's to run WoW (I have a decent system for the 5th already) and the 17" monitors. Would this be thought as a viable option?