I love the multitouch trackpad on my MacBook pro for everyday use, but not so much for editing music. I've just ordered more RAM and a new hard drive for my laptop and that's why I want the mouse in the $0-$35 price range (I've seen Microsoft, HP and Logitech mice in this range). It has to be a full-sized, ergonomic mouse with at least one additional (thumb) button. I do a lot of right-left scrolling, so I guess a scroll ball would be nice. However, scroll wheels are excellent, so I'm not really sure what's better; if all scroll balls get stuck as often as the Mighty Mouse scroll ball does, then I'll just use double-finger internal scrolling with my left hand. EDIT: mice with scroll balls are nearly impossible to find, so don't bother It would great if it could be a regular wireless mouse and a bluetooth mouse would be just awesome.