Tony from the buzzhit! blog tipped me off that Yahoo! has just released a movie recommendation site.
It's free, so give it a try. Worked better than I thought it would, since it only asked me to rate a couple of movies. It recommended several that I had seen and liked (Sideways and The House of Sand and Fog).
If you're reading this site I guess you're the perfect audience for this type of product. We can't get enough of these toys, eh?