We do diesels in FL. For heavy haulers the cattle guys do a lot of diesels. The fruit independents do 1 ton DRW trucks exclusively. Diesels are not as common as other parts of the country though.
When you move, we (state of FL) are going through a crisis in land taxes and insurance within 50 miles of the water (gulf or atlantic). Be careful, a lot of insurers WILL NOT write policies at all and are pulling out of the state completely. Most companies that will write insurance within 50 miles of water the rates are HUGE. The land valuation within 20 miles of the water has gone nuts in the last couple of years and the taxes along with it.
A lot of people (close to the water) can not sell because the buyer can not get insurance and therefore no mtg. The housing market has collapsed and you should be able to SUBTRACT 20% from any "offered" price.
After the 3 hurricanes of 2004 insurers are leary. Oh, NEW building code standards (how the roof is tied into the walls) state wide went into effect in 2000. A house built after 2000 will be easier to insure. I would not go earlier than 2001 to be sure you get the new building codes.
We have a loose central FL TDR. I am in Winter Haven. Look me up when yu get down here.
Bob Weis