Interest match

I would love a feature that could find similar users based on their rating of for example which movies they like or bands or interests or...

Might it be possible to tie it in with the node vote module?

Somebody tried to get a module like this started before: Original thread: http://drupal.org/node/21940
There might be some code for inspiration here: http://www.mypastebin.com/?code=1880021952

Thanks.