Just yesterday, I purchased myself an MXL USB.006 microphone. After testing it out, it sounds MARVELOUS. It sounds near professional, which is much more then what a flash series or cartoon needs.
I tested it out quite a lot, and I will admit that I DO need a pop filter first. After that, I plan on animating again, and perhaps even voice acting for some flashes! I'm quite happy over this purchase, and I hope to see that it was just as smart of a purchase as this Wacom tablet!
A lot of people have been telling me to get in to voice acting, and my excuse was that my microphone sucked. I no longer have that excuse. Maybe I'll come up with another? haha. If you do ask, I want to see what you have done in your flash and what it's about. I don't want to voice act shitty sprite or stick flashes >8(
***EDIT***
Decided to do a Voice Test. Note how I don't say "Demo". I did it with no script or added music or whatever the professionals do. Just wanted to hear how it sounded. Sounded alright. Maybe it'll sound better when I PLAN FOR IT.