Q:
Using a controller???
Not too many have had great success with that. It is possible if you have a remapping program for the buttons. On pc, I know xpadder is one. I have never used one for Mac though. The reason doing so may be difficult is because there are so many keys to use on the comp (1-0, jump, F, all the buttons to open different panels and switch weapons…h, o, b, g, I, y, esc, ~, plus movement keys and strafe, f1-f4, some targetting key). At minimum, that’s 26 unique keys, more if you play an ele or some other profession that uses multiple F# keys like ranger, engi, warrior, guardian… You get it.
So, it’s possible, there was a thread on the tech forum awhile back about someone who got it working. You could always look into different controller mapping apps and try it out.
If you do find one that works out, could you please post back here for other players who may want to try this as well?
PS3 controllers are supported by Mountain Lion, but you’ll need to find a program that will let you map the buttons to keys. Google is your friend for that
As Kylla has said though, the amount of buttons on a controller isn’t going to give you very good functionality. It will be fine for running around and casting I would think, but you’re going to run into trouble trying to use the UI elements like the inventory.