Skip - Don Stauffer is spot on, have a look through the painting and airbrushing section of the forums, just way down the list of categories such as this one. Questions you may have can easily be answered there.
Starting out with no experience makes it hard for you to decide on what type of airbrush will best serve your needs, there are many considerations. Of the types there are:
)Single action external mix, the most basic of airbrushes.
)Single action suction fed.
)Single action internal mix. The one I use most for large area or full coverage base coats or primer coats.
)Dual action, internal mix suction fed.
)Dual action internal mix, gravity fed. This one I use for smaller areas, like detailing or camo.
The advice to visit "Don's Airbrush" site is priceless, you'll find reviews of airbrushes, types like the list above, compressors, and you'll have a better idea of what is the right starting point for you.
Some guys buy the cheaper ones like at Harbor Freight and report excellent results, other say they're just junk. I think the common belief is that if you got a good one you're lucky, if you got a bad one your luck ran out. Very iffy quality control, with a questionable track record.
The advice to buy a quality, durable airbrush is sound, I use Iwata, Paasche, Badger and Binks, of them all I now favor the Badger line. My most often used is the Badger 200G.
One of the most important considerations for a compressor is the noise. There are several at Don's website, from very basic to higher end. I've owned a few, all worked well and held up OK, but were just too darned loud. Now I use a Califoria Air Tools twin cylinder setup with tank. So quiet it's barely above the human voice, $180.00 US. Wish I had bought it many years ago.
Good luck, ask any other question you might have.