Let's talk compressors (for the shop)

First thing don't get an oil-free one. they are loud and don't last. get one that is oil lubed and as prine said at least 60 gallons or more and look for the highest cfm rating. the hp rating doesn't really matter. a friend of mine who is a painter has the black craftsman professional 60 gallon and it works fine for his needs when he works at home. also look into the ingersol rand ones, not very expensive and are good compressors.