Hey Ruffles, I use the Badger Patriot 105 dual action. I love the Badger name and quality. Plus I recently had to order some extra parts (I lost some during my last move) and their customer service was just amazing and helpful in locating the correct part numbers. The Badger Patriot I recommend has a dual action, it'll take some getting use to at first. Also take time to learn how to take yours apart and put back together a couple of times before you jump into the full blown use of it. This will help you out a lot when you need to clean or service it.
My main thing is cleaning it after each and every color use and keeping it clean over night. I use a watered down Lysol solution, just like they use in Chemistry class to keep my airbrush clean. I do a 3 part lysol to 1 part distilled water into a small squeeze bottle with a dripper tip and use that to clean up after acrylic paints. For lacquer based paints, I use Tamiya Lacquer Thinner for that. After using either the Lysol solution or the Lacquer thinner, I follow it up wth a flush of Distilled water afterwards, just additional OCD on my part to prevent buildup. Keep a dedicated brush to swish out the paint pot after airbrushing.
Bottomline: Take care of your airbrush, get several needle sizes, learn on acrylics first, get the cleaning method down, use a good venting spray booth AND a respirator (unless you like wheezing while you sleep, I learned the hard way.)
Also you'll need an airbrush pot. So much fun stuff, happy airbrushing! Theres nothing like it. Hit me up if you have any questions bud.