Mike,
Just because you have high humidity and bugs, doesn't mean you can't have a log home. As long as you follow a few cardinal rules, such as minimum height of the lower logs from the ground, large roof overhangs, proper drainage and treating your logs with borate, you shouldn't have any more problems with rot or bugs than any other house that contains wood.
Think about it. I'm sure there are plenty of vinyl sided houses in your area. The vinyl may keep the rain off of the wood underneath but it can't keep out the humidity. In fact it could even trap it, if not installed properly.
Here's another advantage of logs over any kind of siding. If termites take up residence in a traditional house, they're hidden by the siding until they've done their damage. In a log home everything is out in the open so you can see the little critters as soon as they try to move in and you can get rid of them. More on termites: http://www.loghomebuilders.org/log-homes-and-termites
Any house is going to require attention and regular maintenance and a log house does not necessarily require more of either just because you live in high humidity. There is lots of good information on this site which may help you in your decision. Try searching for "termites" "humidity" "rot" etc.
Good luck and welcome to the forums.
JD


Hello everyone my name is Michael Knowles. I was wondering if anyone can give me insight or information about building a log home on the gulf coast. The reason I am asking is because several people I have talked to have tried to persuade me that do to the climate and bugs we have on the alabama gulf coast that a log home isn't a very smart move! This was very disturbing to me since I started wanting a log home since I was 17. Any comments or info will be appreciated thanks.