Snakehead- Awesome rundown! this is one that I just pasted from another member asking the same question, I figured some reinforcement wouldn't hurt
My first piece of advice would be if you are serious about getting into airbrushing, find a local Art shop /supply store and take some classes before you drop all this money on something you may not even like doing
Getting into airbrushing lures is a great art from. However, like fishing, airbrushing its not cheap, and if you are serious about it, its not just a hobby.
I know there are guys on YouTube showing $20 airbrushes in action, claiming they work. That simply isn't true. If you really want to put out some quality work, you're going to have to spend money.
More Importantly, its not an easy thing to do. You will need to develop your skills. That includes understanding how every part of the airbrush works & how to make adjustments. You will have to develop your skills as far as brush strokes and technique. Also, like snakehead mentioned, you will need in depth knowledge of the color spectrum. How to properly thin paints. How they react when layered. There are Opaque, Transparent, Iridescent, Pearlized, Metallic, Flourescent...
There are 2 types of airbrushes you will have to decide between, the first is siphon fed, and the second is gravity fed. Most siphon fed airbrushes cost less and are good at painting larger areas, but lack the capability to paint fine lines and details. The gravity fed airbrush, on the other hand, is good for painting both larger areas and very fine details (take Snakeheads advice & go w/gravity fed) You can buy different size needles, caps, and tips for both types, and I suggest you do buy spares because parts can be delicate and you don't want to break or bend a needle while in the middle of a lure..
When shopping for your starter airbrush, there are 3 major companies that you'll want to take a look at. Badger, Paasche, and Iwata. Badger, in general, is seen as the "cheaper" option, but if you get into their higher end brushes, they put out some decent equipment. Paasche is next, but not inferior to Iwata. I know professional artists that will only use Paasche, and others that will only use Iwata, it comes down to what you prefer, and what you can afford. I own a high end Paasche, you can check out a few of my lures on this site & decide for yourself.
The next purchase you'll need to make is a compressor. You can go out and buy a kit compressor, a small, handheld compressor, which I strongly advise against. The major problems with these are that they constantly need to be running because they don't have an air reserve tank (extremely annoying), and they sputter while you're painting. I would recommend going out to your local Home Depot and buying a construction style compressor. There are several different styles and sizes, the most popular being a pancake style, but make sure that the one you purchase has a psi gauge and control. This will allow you to place the compressor somewhere away from your work station, this way you can paint in peace, and have a smooth air stream running to your airbrush. After you choose a compressor, you'll need to buy a moisture trap. This is an ABSOLUTE MUST. Without a moisture trap you'll have water spitting out of your compressor through your airbrush.
Snakehead, I know I repeated most of what you said, but I'm sure we both have the same good intentions as far as advice.
For other info, go to www.tackleunderground.com, they have everything and anything you'll ever want to know on tackle making. Good Luck!!