I think a TV series based on Max Brooks' zombie novel
World War Z would be pretty cool. Since the book's chapters are divided up into various individuals telling about their experiences before and during the world-wide zombie plague, the episodes could each deal with different people, with "the interviewer" being a reoccurring character of course. Such a series would have to be on a gore-friendly channel like HBO or Showtime however. I'd suggest Sci-Fi Channel if their production values didn't suck so much.
BTW if you're a zombie fan and you haven't read
World War Z yet, go to Amazon.com and buy it right now. Go! Chop-chop!
EDIT: Oops - I forgot...
World War Z is going to be a movie, slated for release in 2008.
http://www.imdb.com/title/tt0816711/