Plug-ins Available Protect Against Malicious Code?

Hi - I have a form on one of my views that allows non-registered and registered users to comment on a photo. I'd like to be able to let users enter simple HTML tags such as links and images, but no no iframes, JS, etc. Is there a plug-in out there that will get me most (if not all) the way there? I've searched the ROR plugin site at Agilewebdevelopment.com but have not found anything.

Thanks in advance,

Chad

http://svn.techno-weenie.net/projects/plugins/white_list/

Great - Thanks Chris!