Hi guys, I have a very cheap Testors airbrush. I have the cheapest one you buy a few years back. It hooks to a can. For bigger projects it works good. For finer detail it really stinks. I was looking at getting a new one. I know very little abut them. I searched ebay for a little bit. I came across a mighty mini, mini blue, and Aztec. What is a good brush for model trains and such? I would like to be able to paint the whole car as well as paint fine lines. Also what gives the best bang for your buck?