Get an n52 and the X-keys legends pack of key cap tape. (scroll down to legends)

http://www.xkeys.com/access.php




Print Icons onto the legend or draw them on (maybe just use masking tape, especially if you're just gonna draw it anyway), so you get the visiual of what each key is and just tape that onto the keys of the n52. I run X-keys on 6 of my boxes, but my warrior, I use an n52 with taped on key caps for seeing quickly what each key does. I like that alot better then trying to remember the #9 key on this box ( 9 computers) does this.....

Also, can get a keypad. Just ordered 4 of these

http://www.amazon.com/gp/product/B000RZTDZ6

to broadcast to different computers. They will work just as your numpad that's already on your keyboard (assuming your keyboard has it), so maybe just use your numpad. For EQ (no idea on WoW), I go into key options and assign my hotkeys to be associated with my numpad keys. Before that, I never used my numpad. Not sure if WoW players do.