I have been on a quest for the perfect mouse. Like most Mac users, I am picky about my products. For example, I would love a Bluetooth mouse, but I would also like to program Exposé features to the 4+5 buttons and BT at this time does not support that. So I settled with a wired mouse for now. Here's what I would love: 1. Exposé functionality for buttons 4+5. 2. Track anywhere optics - No Mouse Pad! 3. The ability to program a function for hitting button 1+2 simultaneously (and 4+5 simultaneously as well). The only driver I know that allows a button 1+2 function is Kensington's Mouseworks. But the Kensington Optical Elite I bought needed a mousepad. So I bought a Microsoft 5 button mouse, which tracked quite nicely without a mousepad - but there was no options available for button 1+2 functionality. Any picky people out there come up with the perfect mouse? I've read through the forums and it seems most people are asking about Bluetooth Mice. thanks.