Hi John,

There are lots of RSS Readers/Aggregators available both paied and free. Some of them are:

* RSS Bandit (http://www.rssbandit.org/ow.asp?DownLoad)
* NewsGator (http://www.newsgator.com)
* BlogLines.com (online)

If you need to do that programatically, you may read my article on the April 2003 edition of UTMag, available at: http://www.utmag.com/April2003/Page46.asp

BTW, XSLT is an excellent choice!

HTH.