0. reply to the original post, i'd be suprised if someone wouldn't find it and reply, especially since I am surely not the only less than bleeding edge multiboxer out there.

1. enough horsepower? absolutely...i was able to 5box with an AMD AM2/940 model 1220 (dual core, 2.8GHz cpu freq, 1MB cache/core) + 4GB ram and a crappy 256MB graphics card and the cpu load was fine. The cpu frequency is almost the most important thing as long as you have >=2 cores ).

2. symbolic linking? try it out, but I would guess yes...i was running 5 accounts out of 1 wow dir on the above machine and have lag in org...I have since made 5 copies on 1 HD and had MASSIVE lag in all cities with SHatt being impossible. I have since symbolic linked the drives and can happily /train through shatt all day now.

3. misc...if anything you may have RAM issues with 32bit winders and not being able to see all 4GB although with 4 accounts you should be just fine.