Thanks for all the input, folks...
Wingman -
I actually know of a couple of art suppliers who have airbrushing classes, I'm thinking about talking to them to see if it would be worth it to take one or two- maybe I can "test-drive" 1 or 2 different models before spending my hard-earned cash..?
You're also right...I don't know of many people who've been in this hobby a while without purchasing a second, third, etc. AB.