Well SmithMicro has some good programs for that.
Anime Studio http://anime.smithmicro.com/index.html
And Manga Studio http://manga.smithmicro.com/index.html?__utma=95568716.1897185272.1373003032.1373771841.1374016787.10&__utmb=95568716.4.10.1374016787&__utmc=95568716&__utmx=-&__utmz=95568716.1373771841.9.6.utmcsr=google|utmccn=%28organic%29|utmcmd=organic|utmctr=%28not%20provided%29&__utmv=-&__utmk=4658299
Well there is a program used for anime called Retas
but unfortunately it's only available in korea, china, and of course japan. The USA used to have it, but now it's been discontinued and there are no plans to put it out as export. And even if you did find it it's not compatible with Windows 7. Also if you get it abroad from Japan you'd only get the japanese version, so too bad
Well hopefully you guys out there have some good advice on this kinds of things. This is the work of someone on youtube. It's not official but I have to admit I love the animation.