Want to create a portal of flash animation content... CMS colution

So, I've been working on my animation skills and I have quite a few toons put together. I am looking to start a flash animation portal/community. Basically I want some sort of CMS and Forum with a lot of customization. Each cartoon series would need its own sub theme to distinguish it from the rest of the site, but I would like to have unifying navigation either across the top or along the side. I have thought about creating a custom solution (I have done this before with success) but I would really rather find something that just works the way that I want it to. I happy concentrating on the creative things while my PHP books gather dust.

Also, I don't mind shelling out cash to buy a CMS or have one modified.

Any suggestions are appreciated.

Part of the board could be used for that, but primarily it would be a fan discussion area.

I tried out drupal, and hit a wall trying to find resources online for skinning/theming and integrating a real forum. I think I'm going to go with mambo... I found about 20 forum sites and countless skinning sites and there are tons of plugins/mods for it... I think I'll be able to make it play nice for my needs. I'm in the process of tweaking it right now...

Thanks!