Although I have other makes, like Iwata and Paasche, my most often used is a Badger 100G. Small gravity feed cup, double action and small size, super easy and fast cleanup. Can be found at USA Airbrush, (I think a part of Badger Company,) for around US $80. Extremely durable, Badger's can last for many years.
Another for consideration is the Badger 105, again super quick and easy to clean, bulletproof airbrush, high quality sprayer. If you don't need the large cup of the 105, the 105 Arrow is the same airbrush, with a smaller cup. I have both, they are for my larger area tasks, the 100G with small tip is for detail work, like camo and tight areas.
Can you go to a hobby shop that has good inventory, to try some out for handling? That will tell you a lot, how one fits your hand is important.
A great source of information about airbrushes is: "Don's Airbrush" website, spend some time there and you'll come away with some priceless info. You'll find specific info about the Iwata you referenced.
Good luck with your search.
Patrick