All thorw in what i can both of the previous replys are very true indeed..but vary..as everything does.
I bought my Paasche double action for $70 at a local Crafts 2000.
It works great. I'd recommend a D-A for anyone....and who ever says you can't learn to use them..that person is crazy. They aren't hard to learn AT ALL. and when you do get some experience you can do some great things with them... flame and ghost effects like you wouldn't believe.
But this my not be practical...my best suggestion i do exactly what you are doing now, but only go father out on the "net" theres so much you can learn.
As far a air compressors go...
You can buy special ones that have all kinds of filters and such that are made specifically for Airbrushing....they are small and compact..and usualy pump up pretty quick...and aren't extremely loud.
But there are other ways to go...this way was just more convient for us when we bought our compressor.
We own a 3 piston comp. This just means it pumps up quicker...not exactly a nessecary thing for only airbrushing.
But if you ever wish to use an Airgun..this would apply to other house hold "maintenance" **shudders**
It would benefit you greatly to buy a larger compressor/tank....no to mention they are great all around tools...we use ours for everything.
You'll have to research some compressors on your own your local Home Depot or Lowes carries them likely.
But depending on what kind you get..make sure it has filters that....
1. Filter the air going INTO the tank.
2. Filter the air LEAVING the tank.
these are im portant to keep the inside of the tank clean and make sure the air leaving the tank and going through your airbrush doesn't have junk in it that can clog your A/B these also cut down on moisture.
Be sure to read your manuals when you get the tank and follow the instructions like the bible...it doesn't take much time and what time it does take for maintence is well worth your $200+ purcahse.
I could write more..but i don't want to give useless information.
If you have another question you could PM me or email or AIM me..im usualy around most of the time.
Good luck!!
-matt