Another trailer trawler that seems like it could be a good choice is the Ranger R-25. (No connection, etc. etc.)
I spent quite a bit of time aboard at last year's Seattle boat show, poking into every detail I could think of and asking lots of questions. It seemed well designed and laid out, and with inboard prop and small diesel ought to be economical and low maintenance. I've not been aboard on the water, but my friend later took a test ride, and was impressed.
Last summer in Alaska I ran into a couple who had taken their new R-25 up for its first extended cruise. They seemed quite pleased.
Here's a link to some pictures:
If the link doesn't take you right to a slide show of larger pictures, select the gold colored Ranger Tugs logo in the upper left.
-- Edited by RCook at 12:52, 2007-12-16