let me say this is bold.... just for effect
You do NOT want to two box on one PC
even with the 3.0 gig system I have played on trying to run two instances of EQ causes horrid lag in both. As both try to read and write to the Hard-Drive at the same time.. this works to exchange items, but you can not switch between them fast enough to effectively play two characters and 99 time out of 100 one or both of them will die in a fight.. (due to Lag, or not able to swap)... (remember if one dies it will lockup the mouse so you can't move the other till first one returns to bind)
EASIEST SOLUTION:
Click Image to see more info on it
This is what I use.
I can roll it up beside when I need to bring in more than one character, I use a 40$ Logitech wireless mouse/keyboard so I can move it on to the desk by my main keyboard. And when I dont need two characters, I roll it back up against the wall (and put mouse and keyboard back). You zip-tie a powerstrip to the frame and then the only cords are the network cord, and extension cord (I have mine zip-tied togehter).
Hope that helps..
/bow