There seem to be a number of solutions out there to help you deliver SharePoint content via RSS, thought I would just put togther a quick summary (in no particular order!):

1. Maurice Prathers Web Part: http://www.bluedoglimited.com/Downloads/pages/SyndicationGenerator.aspx
2. Addy Santos BlogWave: http://weblogs.asp.net/asanto/archive/2004/08/22/218625.aspx
3. George DataView and XSLT (via Bill Simser): http://x5.tsiokos.com/posts/2005/01/11/wss-rss/
4. U2U are working on something according to Jan Tielens: http://weblogs.asp.net/jan/archive/2005/01/30/363362.aspx
5. DevHawk SharePoint Syndication: http://www.devhawk.net/prj_SharePointSynd.aspx

Now, folks, I know I have forgotten some, my apologies in advance…Tell me about it and I’ll update the list.