[Mark215]

I would buy regular. If your set up is 1 battery is only for the engine and the other is for house loads I would put in 1 starting & 1 deep cycyle (for house loads) If your battery starts and powers your electronics together then I recommend a dual pupose battery like Dreamon recommended. I use Intersate batteries also heard good things about Deka. If you do a search everyone has good and bad things to say about each manufacturer. Just check the date when the battery was made to make sure your picking up a fresh one.