I don't feel like sitting at my desk waiting for my turn to log in, is it safe to go watch a movie? How long will they let you sit at the character selection screen before you are automatically logged off?
They'll let you idle for a good while, I think 20-30 minutes or longer. I generally have an episode of Boardwalk Empire (~90 minutes) going in the background when I have to wait in a queue for some of my alts. Granted I also run dual monitors so I immediately see when I get in, but depending on the queue time you can possibly watch a movie.