Being a late night TV host may look easy, but there’s a serious, nitty gritty side to it as well. Take, for example, what David Letterman has to deal with next week. First, on Monday’s “Late Show with David Letterman” on CBS he will have the task of revealing the cover photo for the 2008 Sports Illustrated Swimsuit Issue. Then, with only 24 hours to recuperate, Letterman will have to interview the cover model on Tuesday’s show. Gee, who says he’s overpaid?