Thanks for the replies guys. I didn't give a price range but I was looking for something rather cheap (ie. <$1500). The more I think about it, and the more research I do, I might wind up going for a mid-90s 4.9L Ford F150. I can get them in the $700-1000 range with the 4x2 and standard transmission which is what I'm looking for. I can get something more efficient if I go up in price to around $1500, but for the miles I plan on running it a year MPG might not be that big of a deal after all. Not looking to commute with it/use it in the winters, just maybe take it out once a week in the summer to pull a boat to a boat launch.
With everything for sale around here being 4x4, I'd be looking at smaller engines that get the same mileage as the 4x2 4.9 anyway. So while I'm not getting much better mileage, I'm at least getting more power for less money.
Everyone tells me you buy a truck to haul, not to save gas. I guess they're right