Corel X3 has an easier learning curve... PLUS you can edit your mov files with the included Corel paint (if you like using alphas and compositing several layers of movies together)

I also use a cintiq 12w and love using the Media brushes. They happen to be like using india ink (comic book inking). AND Corel has the ultimate in Comic book illustrators tools, the Powerclip and callout baloons.

Illustrator is a great tool, but X3 is very affordable and has a lot of bonus things that can enhance anyones work in vectors, Video editing and creating a Graphic novel or Comic book.

Carrara 7 Pro, Anime Studio Pro 8, Hexagon 2.5, Zbrush 4.6, trueSpace 7.6, and Corel Draw X3. Manga Studio 4EX, Open Canvas 5, WACOM Cintiq 12WX User