Not that I've joined 1337, but don't buy an Aztek.... I've been pretty happy with my Badger 200NH & my next airbrush will most likely be a Badger. Here is a link for some good prices on Badger & Omni/Vegas.
http://www.youcanshopsecure.com/baairbrprli.html
and if you're into Tamiya airbrushes, here's a good site...
http://www.buy-model.com/itemlist.php?ItemClassId=V&GroupId=119