Badger, Thayer and Chandler, Iwata and Paasche are all good companies... I can't help you with a recommendation on the Paasche though, I was interested in the Millenium many moons ago but couldn't find anyone on here that used it... I do believe one or two have mentioned the VLSPRO in a positive light though.
this link might help get a better eye as to what to look for in an airbrush:
http://www.craigcentral.com/models/ab.asp