I need a recommendation for an airbrush. I've always wanted one and I'm at a point where I think I need one.

Best bang for your buck is what I'm looking for.

 

Look into a Badger airbrush. I know they've got a dual action brush that can be had for around $60. Personally, I'm a fan of Iwata airbrushes, but they're a bit expensive.

The real trick is getting a good air compressor. If noise isn't an issue, you can just get a regular compressor from someplace like Lowes or Home Depot. It'll have a tank and a regulator on it. All you'll need is a water trap for it, and those aren't that expensive.