Bought a new '06 in June of last year from Fusz Dodge in St Louis. Had a couple issues with temp sensor "rationality" that were fixed by flash. 2nd flash seems to have decreased power and changed the torque curve slightly, but I've gotten used to it or it was all in my mind.
Truck hauls... HAULS... when pulling my 30' gooseneck horse trailer (about 7500-10,000 pounds depending who/how many horses I'm pulling. ) Never been disappointed while on the road towing. I'll let Fords pulling at 80 go by me, as I won't intentionally exceed the speed limit by more than 2-3mph when pulling the horses, but haven't ever been passed by a Ford or Chevy pulling a trailer uphill.
LOVE the manual transmission--definitely made the right decision. Won't win any races from light to light (well, actually... I dusted a PSD awhile back from a stop) but I've outmuscled all trucks I've come up against when pulling in the hills. Would be nice to see a road test of the Dodge six speed manual transmission truck against a dmax or psd. Dodge with the auto didn't do too well in one roadtest against the other 2, which had more gears available.
Other than the temp sensor, no issues. Don't love having a new truck payment, but love having a truck that makes my job easier when pulling a large trailer.
Don't suspect you'll find an '06 for what you want to pay, but good luck with what you do find!
Mike