I don’t know the first thing about ideograms, but here is a very cool flash application that helps you learn to write Chinese characters. It’s free for now (no private beta, just beta). According to my friend who posted the link:
It is simple to use and it teaches people how to write characters using spaced-repetition learning system which seems to be quite similiar to the method that Peter Pimsleur used to develop a system to learn to speak foreign languages easily (see Simon & Schuster for spoken language learning).
If that is your thing, it’s worth a look.