I currently own a Macbook Pro and I love the touchpad. So much, in fact, that I mostly prefer it to mice. The killer feature, in my opinion, is the multitouch, and with BetterTouchTool, I cannot live without my custom gestures. That being said, there are certain times, like in Photoshop, where a physical mouse is more effective. Yet, I still don't want to lose the functionality of all my BetterToolGestures. I would like to get a mouse and I was wondering if I should get a Magic Mouse. Its multitouch surface can be customized with BetterTouchTool as well, so I don't have to worry about losing functionality. But I am worried about two things: 1. Ergonomics - I can figure out if I like its feel by playing around with it at the Apple Store, but unless I use it for a good amount of time, I won't know how it'll treat my wrists. I've heard its much better to use your fingertips to move the mouse as opposed to your palm, and I'm pretty flexible in that regard, but I just don't want my wrists sore after usage. 2. Battery consumption - I have heard that this mouse EATS batteries. Whats the most cost effective way to deal with this? Should I get rechargeables? I read somewhere that rechargeables will be consumed to fast to be practical. If I don't get a Magic Mouse, I could still maintain functionality I guess. I could use a standard mouse with my right hand and then place my left hand on the trackpad of my Macbook Pro to perform gestures. I'll have a hand for the mouse and a hand for the gestures, but I'm not sure how practical that is actuality.