I need an Air Brush kit as I have lots of model tanks and I just can't brush paint them any more I really suck at brush painting and its no fun when it looks like crap at the end does anyone know of any cheap affordable air brush kits I really don't have too much spending money so I'm talking about a max of 100$ so far I seen a few on the wal mart website but not too sure if they are any good any tips would be amazing

Here is a link to a review of an Expo Airbrush and Compressor that I feel will meet your needs.
Expo Airbrush and Compressor

Check with your local hobby store, most will have the Iwata Neo for about $80.