Hi Les, having bought your airbrush, can i advise you to get a compressor, the cost of canned air is very high 3 or 4 cans will get you a cheep one but i would say go up market a bit and get one wth an air tank, less chuffing gives a far superior finish.
Choice of paint type is up to you but practice on bits of cardboard etc, learn how to mix the paint and thinners etc, just remember that all paint settles and this needs careful mixing before you add the thinners, one other tip, try to keep manufacturers together, dont cross paint and thinners, they dont always match
Mark