mostly depends on what you're after... if you're looking to be different and want a little wow factor, then rolling up to the trail with an Isuzu NPR pulling your Isuzu rig could be cool.

that sad, I don't think an NPR is the best bargin out there in terms of towing capability. They're actually not as powerful as you think, ride is a bit rough, and parts are not easy to come by. you're also more likely to encounter attention from the DMV pulling with something like that vs a 1-ton truck.

IMO, in terms of cost and performance, you're better off with a 1-ton diesel truck.

-Rob