Modelers
http://www.harborfreight.com/air-tools/air-compressors/1-3-hp-3-gallon-100-psi-oilless-air-compressor-97080.html
With a coupon this compressor is $39.95!
They do have a hobby airbrush compressor for $69.95 that
looks real cool like all the Badgers and Paasche compressors.
The thing about it is air is air.
I figured it out planning to use my Craftsman compressor to airbrush.
You run it up until its pressurized and then bring it inside and use it until it runs down.
This Harbor Freight compressor can also do double duty and
be used for light duty auto stuff. Tire inflation and short air gun use.
Thanks!