Looks like my Mighty Mouse's scroll wheel will soon die and I want to replace it, besides I have problems with tracking (too slow). Now I can't decide between Magic Mouse and Magic Trackpad. Mouse seems to be more precise and less ergonomics in compare with Trackpad. I actually prefer a Trackpad but I work with Illustrator and Photoshop for school and looks like Photoshop (Illustrator too??) have problems with Apple Trackpad. Do you have any suggestions on which to buy and why? BTW how is with battery life on Trackpad?