[azoldbill]

I agree with buying the biggest compressor you can afford. Nothing stinks worse than having to stop every couple minutes while blasting to wait for the compressor catches up. When looking, one of the most important things is the CFM at a given PSI. Most compressor data plates give 2 sets, one at 40psi and one at 90psi. Try to compare CFM at the same PSI for a better idea of the compressor's abilities. CFM is a rough idea of how much air a compressor will crank out in a given time. The bigger the CFM, the more it can crank out. And if you only happen to be using xxx cfm while the compressor cranks out xxx+10 cfm, then you won't be waiting on the compressor, it'll be waiting on you.

And whatever you do, seriously consider avoiding the oilless type compressors. Those things put out a loud, annoying, high-pitched whine that grates on your nerves after a while....at least my old one did. YMMV.