[DonV]

Hummmm.....good question. You have to ask things like, do I need a portable or can I use a stand alone, satationary unit with lots of hose. In any case bigger and more volume is better. What about water issues? I'm in a high humidity area and water in the tank is a problem...you may need a dryer. In any case when you decide don't go too cheap on the tools and when you have made a decision shop "apples to apples" on ebay, I've saved quite a bit doing that as long as it's free shipping. Can be large savings, plus with the building industry in a down mode pawn shops have a lot of these type items for sale. For the easy stuff that's made in China anyway, like air hose, quick release fittings, etc. check out a place like Harbor Freight. I'm in the process of rebuilding my transom, center console, etc. and I don't know how you can live without air die grinders, sanders.....things like that.