Study,
Have you priced out the gear cutters you'd need? These are fairly pricey, and chance are you'll need a different one for every gear tooth number you cut, unless they are very close in tooth number. There are 8 cutters in a set to cut all gears of one pitch. You might not need them all, but you might need three or four, depending on what you are doing.
First you get good, then you get fast. Then grouchiness sets in.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)