I had a good experience with Ken's Nursery. (I waited until the end of the season, around Sept or so, when everything was on sale and the plants were the biggest, to do several large orders.) They have a variety of pineapples, all of which will grow in SFL, and the plants were very large (but without fruit). I can't comment yet on which grows or tastes the best, because I haven't had them all that long and I've only tasted Royal Hawaiian and West African Sugarloaf from another supplier. But certainly Florida Special, which was talked about in another thread, will do well in FL. It might not end up being the one with the best taste though. But as long as you're willing to give them good soil, a number of varieties should grow well in SFL.