Jimmy, We will be there at the same time. We like the Royal Palm and got a really good rate for 2 months and some friend are coming for 2 weeks were also given a great rate. If you book now probably get a good rate-closer to winter the rates will go up of course. The Royal Palm is condos on the sea with a nice big pool and central air. 15 minute bike ride to town, but several bars and resturants near by. If you like a lot of people around then Banana Beach might be better. If you are looking at just a room in a buget place there are several in town that others on the board know more about.
As for is that enough time, guess that depends on you. Is this your first trip? People are friendly. You might book something in town for a week to kind of get the lay of the town and then book a month or 5 weeks at Royal Palm or Bannna Beach. Bring plenty of books they are hard to find on the island. Will be glad to trade with you. Tell us a little more about what you like or are looking for and we can better help. It is a wonderful place. We have been 3 times in 19 months.