Fish-WVa, you have a PM. I can help you with all that you've asked. Smoothlures gave you a great overview.
If you want to powder paint quite a few jigs, I can send you plans (originally from CadMan on TackleUnderground.com) on making a super little 2" fluid cup that just uses a couple pieces of PVC, a little valve, a brown paper bag, and an aquarium pump. I just painted a few dozen using mine tonight, and they work great. A fluid cup is not necessary though.