I'm a Mac convert. Just got my MBP yesterday. I have one question. When I shutdown, it asks me whether I want to sleep, cancel, restart, or shutdown. I was wondering if there is any way to select between these using my keyboard. I feel like I've tried everything. It's a small thing, I know, but it's something I've been doing on Windows forever using arrows or tab. Not only shutdown windows, but any dialog box, such as on web browsers and junk. Thanks.