Need a new air compressor

I'll tell you what I'm using, FWIW. Two old Campbell-Hausfeld twin-cylinder reciprocating compressors, plumbed to a 60-gallon tank. I have found these old C-H compressors to be quite reliable when properly maintained, available cheaply if you look around (they're one of the most common compressors; used on Sears, Monkey Wards, etc. compressors for years), and all the repair parts are available. I've got hefty 220-volt motors driving each one. When I want shop air I'll run only one of them, and when I want to media blast I'll run them simultaneously.