I'm currently close to finishing a bunch of server side stuff for an application that I'm developing. The next phase will be to overhaul the UI in order to improve usability and expose some new features that have been built into the application base. To this end I've been browsing various jQuery plugin directories looking for useful tools. Here are a selection of the ones that I've found, however I've not tried many of them yet so I can't vouch for their reliability.

1. jQuery Multimedia Portfolio