I'd prefer a USB optical mouse, not wireless. I already have a wireless mouse that uses lots of batteries, and also drains the battery in my iBook.
I just bought a Logitech mouse from BestBuy. Installed the software and my iBook froze. Couldn't do anything at all, until I plugged in my old mouse, so I could uninstall the software. Now I have to go back to BestBuy and return the mouse that claims to be OS X compatible!
Please share your experiences and recommendations. Thanks!