We've been pushing the community more and more on the airbrush issue. They just speed things up incredibly and really give fantastic effects. It's not a complete brush substitute, but the things you can accomplish at a much faster clip make it a near invaluable tool for any hobbyist. Give this video from LBursley a watch and see a few of the applications first hand.
Expect an entire week in the coming month on airbrush tips, how to, reviews, and links. We'll be breaking it all down, and give up as much information as we can to make you as informed as possible. Now, get out there and paint something!