Ideas for a website? anyone?

[diebitter]

IDEAS PLEASE!

I'm currently at a loose end, and decided I need to sharped up certain web skills. Looking for ideas...

Want something that allows the use of a database, is user-driven (visitors will be able to enter stuff to be read by others, for example), and has good revisiting potential for users.

Given my movie obsession, I was thinking a movie review site where users can post their reviews, tied in to a discussion forum about each one... but that's exactly was IMDB does, so maybe not...

Anyway, the other critieria are:

- if I develop it, I want to show it to clients, so no pr0n.
- not poker - don't wish to compete with 2+2!


Not too bothered if I can't tie it to money-making, as it's really to give me something realistic to refresh my skills in certain areas...

I already have a server etc, so no suggestions needed for that side of things.

thanks all,
db