I had a '95 CC 4x4 with the 7.3...awesome truck, super reliable and great fuel economy @ 21+ mpg on the highway (16 with the monster camper on it). I sold it, as it was starting to need a lot of body work. I then bought my new to me '05 dually. Way nicer truck to drive, more power but not as good on fuel (19 mt on the highway). Now I can tow anything I want, with the higher gvw (13000 lbs). The brakes are way better as is the coil suspension in the '05 and newer models. The 6.0 is not as reliable, but can be with some cash thrown at it.
There are trade offs when buying a truck with different features (motors, tranny's, etc). So you should take your time and do your homework. It will save a lot of heartache in the end. It took me about a year of looking (I have patience) for each of the two diesel trucks I bought. I was willing to wait for the truck that had what I wanted and the right "value" as well. I even bought my latest truck from the States, I probably saved myself close to 15 grand at the time. The internet is an awesome tool for vehicle hunting...it's endless, the amount of trucks to look at. I'm sure I looked at hundreds and had to weed out the lousier ones until I had maybe five left. Then I did further "investigating" with carproof and other auto checkers and if I couldn't test drive them I'd try and have a trusted friend check it out for me. Ask lots of questions and search for help on sites like this, they can help tremendously. Another good site for diesel stuff is TheDieselStop.com. Have fun with your search, and good luck.
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!