Forum user abc19104 has pointed out a great freebie -- you can currently download Anime Studio 5 for Windows or Mac at absolutely no charge from SmithMicro.com! As the name might imply, the program allows you to create your own cartoons and animations. Version 5 is being offered for free because Version 6 has recently been released. Still, for those of you who want to create animation and art for work or fun, this is pretty sweet!
There's no word on how long this offer will last, so download first and ask questions later!