Good thorough writeup on the newest 3/4 gas and 1 ton diesel trucks from Dodge, Chevy, and Ford. They also include Fords F-450 in a seperate test. I wont spoil the results but I think Nowwhat mentioned what he heard/found out when they did a magazine test in his area a few weeks ago.
http://www.pickuptruck.com/html/2007/shootout/hdshootout1.html
http://www.pickuptruck.com/html/2007/shootout/hdshootout1.html