well, you can buy an airbrush tool pretty much at any michaels, jo-anns, harbour freight, even walmart .. prices will vary on how expensive/deluxe you want to go and then dont forget you will need an air compressor if you don't already have one .. hope that helps! 
sorry for the late response! You could definately use that airbrush .. I have one called a quick change, and all that means is that it came with six small bottles that I can already have pre-filled with different colors so I don't have to stop and clean out the bottle before I move onto my next color. Once you decide which one you want to use they are so much fun!
my dh purchased mine from sugarcraft.com.. it was $225 with/compressor... the problem I ran into at michael's and hl were they wanted a little for the airbrush but a ton for the compressors! So I got the package deal at sugarcraft that is made for cakes... it also came with 3 colors. It is a KOPYKAKE Airmaster if you need to know... don't know how much you want to spend, but that is what I have.
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