I got mine from here.
http://www.chicagoairbrushsupply.com/airbrushes1.html
I actually order a bottom feed, which never showed up. After two weeks I called them and they apologized. I ask it I could switch to the
Iwata Eclipse HP-CS Gravity Feed Airbrush Model ECL4500
And I asked since it was xmas could I get it for the same price as the bottom feed which at that time it was on sale for $89 I believe and they agreed. I ended up receiving the small gravity feed airbrush so I call chicagoairbrush to return it and request the correct (large gravity feed). The day after I had ordered the original airbrush (the bottom feed) they did a free shipping deal so I asked for that too, I also realized that I needed a hose which I asked if they could throw that in too again they agreed. So it was my fortune that the first airbrush never came.
at that time it was on sale from 205 to $119. So I got some huge savings for their mistakes. point being they were very accomdating on the customer service side and threw in some huge discounts.
hope this helps