I love this site! Thanks to everyone that took the time out of their day to give me some info. A lot of the info may seem redundant and has been posted before, but helps re-assure my opinions on a new $40,000-$50,000 purchase. I was at my dealer of choice yesterday which is about 1.5 hours away and they found me a truck. The deal would have happened, but the truck was missing one option, the limited slip rear-end. If I'm going to spend the $ and keep the truck for a period of time I might as well get exactly what I want. I prepared myself for it, but they also really low-balled me on the trade-in. He at least was honest with me, they could only give $3,000-$3,500 for my truck which they would sell for $9,000 because they are only making $600 over invoice on the new one. He recommended that I just sell my truck outright and he would continue to look for another new one with the limited slip.
After doing my research and being concerned with warranty issues I spoke with the service department and their "diesel" guy and it doesn't look like it will be too much of an issue with the plow (as long as it has the plow prep pkg.) and aftermarket upgrades. Their diesel tech has an 08 with a plow and interestingly enough, no dpf, aftermarket turbo back exhaust, and edge with attitude programmer. He told me his truck still has all of the emissions stuff on it, it's just "invisible", wink, wink. He doesn't understand why someone wouldn't unlock the potential for more power, better fuel economy, and lower EGT's when you are paying close to $10,000 for the diesel option. Since I am not buying a new plow through the dealer the salesman can apply the "business owner" $800 discount to a 80K bumper to bumper warranty that they will honor even with upgrades and a plow. I still consider myself a Ford truck guy, but with all of the incentives and reputation of the Cummins, this Ford guy might be soon Cummins instead of Stroking. Just have to sell myself on the lack-luster interior of the Dodge and get Big Ferd sold. Thanks again everyone, it is greatly appreciated.