Go on ebay and shop around too, I found my iwata for a good price with a hose, aircompressor is personal preference and what your budget is, u need to make sure u have a moisture trap too.
Yea, I got an Iwata eclipse, Awesome gun cause it will do acrylics and lacquer based paints. Now be patient and u will find one cheap enough. I bought mine on ebay and it had no defects. Cheap airbrushes ain't the way to go if u are serious about painting.