I finally purchased Halo for the Mac about a week ago, but there's no way I can play it using the keyboard and trackpad on my Powerbook. Can anyone recommend a Mac-friendly gamepad (preferably) or even a mouse to use? I tried picking up a Logitech Dual Shock gamepad from Best Buy (it even said it was Mac-compatible on the box) and it didn't work. It worked on my brother's Windows machine fine, though, so it wasn't defective. Anyway, I need something to play Halo with, so please help!