Here's an interesting (editorial?) piece on Marques Colston and the possibility of Colston heading to the Pro Football Hall of Fame:
http://bleacherreport.com/articles/50065-could-marques-colston-be-on-the-train-to-canton#comments
I've never heard of the author (and he looks like he may be in high school - and I have no problem with that), but he brings up some good points.
Obviously, staying healthy will be the key for Marques; and playing with Drew Brees for five more years won't hurt him, either.