I also would only be interested in a 4WD. Trucks are so light in the back end that I'll never buy a 2WD truck. It is surprising how often I need it. (I have a Toyota Tacoma 4WD now and love it but it is not in the same class)
+1 - My Tundra just celebrated its 10th birthday and still going strong. 4WD is non-negotiable on a truck AFAIC. If you don't need 4WD on a truck, then you don't need a truck.