No, I do not know when I'll have time for that, like for the rest

Did you set up that imageshack-like service to host pictures?

You may have to logout & login again, it should work then.
(while the site was locked no-one was admin, so you are still connected as non-admin)

Hi antp, where is the link to add movies?

Already finished, I was not expecting that all was so quick & automatic, I nearly had nothing to do except few clics.
I'll just check a little more and then unlock the site to have it running as before.

I'll probably start that this evening.

Sounds like an excellent idea then

I may do an automatic recompress when size exceeds the limits.

That sounds like a good solution, will all the same size/compression rules apply to the comment pictures as well?