Have a look at http://ianp.org/articles/textmate.html for a collection of pointers and download links to user contributed bundles.
Great stuff, Ian!
We've blogged your page already: http://macromates.com/blog/archives/2004/10/08/textmate-bundles-here- there-and-everywhere/ -- David Heinemeier Hansson, http://www.rubyonrails.org/ -- Web-application framework for Ruby http://www.instiki.org/ -- A No-Step-Three Wiki in Ruby http://macromates.com/ -- TextMate: Code and markup editor for OS X http://www.basecamphq.com/ -- Web-based Project Management http://www.loudthinking.com/ -- Broadcasting Brain http://www.nextangle.com/ -- Development & Consulting Services