Right on! You won't regret getting a diesel. If you haven't already, start picking up Diesel Power Magazines (Old ones if you can too...lots of good stuff for the 6.0 a couple months ago) and TheDieselStop website is a good one for all kinds of info on Super Duty's. Good luck with your new beast.
The Hauler - '05 F-350 4x4 CC Dually 6.0 Powerstroke
The Project - '90 Ford Bronco 4x4
The wife's - '11 Ford Escape
For every minute you are away from work...you can add two minutes to your life!