I am going to be commuting to Fairfield University next year. Right now i have a 1999 Chevy Silverado 2500 6.0L V8. I am getting about 10-12 mpg. I am looking to buy a used F-350 7.3 diesel between 1999 and 2003. Currently I put on about 30,000 miles a year. Do you think i should make the switch or just tough out the horrific gas mileage. Also I am going to be purchasing a 18 or 20 foot trailer. I will also be putting a plow on the ford, since i already have one on the chevy. Will the extra torque, power, and better gas mileage justify the cost of a F-350. Also do you have any suggestions or comments as to what trailer is good for hauling two ZTR's and one walkbehind?