I appreciate the responses to my enquiry. Upon final review I have decided to go with the Dodge Ram 3500 HD dually gas version. One of the main reasons I did not go with diesel is that in the off season I am going to be using the truck as a daily driver and I live in a cold climate (Lower North Shore of Québec, Canada right on the Labrador border). There will be lots of cold morning where I start the truck and drive a couple of minutes to work and stop it for hours at a time. This, apparently is not a good thing to do with a diesel! I have been told by many people that the Dodge Ram gas engine is probably the least capable of the big 3 but ultimately that is the way that I decided to go (mostly because of the luxurious interior compared to Ford and GMC). Hopefully I will not regret my decision!