For all that are also doing some artwork get some great news.
used in e.g. Futurama
Effective Saturday March 26, TOONZ will be made available to the animation community as a free download.
http://www.toonzpremium.com/
This will be a game changer, so many other animating tools are prohibitively expensive for someone just starting out that isn't working in a large studio.
Develop games in your browser. Powerful, performant & highly capable.
Here is the link to download Toonz
https://opentoonz.github.io/e/index.html
what!?!?!?! *shocked an happy face*