I don't know whether you own just After Effects or the entire Production Premium suite (or intend to own; they are about equally expensive) - with the Production Premium there is/are (a) great tool(s) for creating a website included. Just thought I'd throw that out there.
Otherwise: definitely your videos (obviously), some facts about you and when you took up brickfilming (optionally), an FAQ page, a guest book, ...
You should have a look at 0ldScratch's and ZachMG's websites, I think they are pretty good and a pleasure to the eye!
EDIT: Oh, and let's not forget pictures of yourself naked.
-pacific