Tired of waiting for an updated iBook, I'm thinking of getting a 20" iMac. The all-in-one style of the iMac implies that it can be somewhat-easily transported, but I have some questions about that. 1. I know the iMac is heavy. Is there a bag that can carry it? 2. Is the stand easily removable? I see iMacs hanging from the wall of my friendly neighborhood Apple Store, so I presume it's possible. 3. Has anyone tried doing this? I figure that 99% of the time I'll be using it on my desk, but being able to take it, along with a Bluetooth keyboard/mouse, to another location is too tempting to ignore.