which should i get?? Travel 60 miles a day all highway, will not be towing anything only using for house stuff. I am in NJ so seasonal climate. Looking for something that will last a while, great gas mileage, good in snow (i would get 4x4). I read the diesel would only get about 2-3 mpg more than gas. would be first pickup...thanks for the help!! oh and would be getting the crew cab because of my kids.