During David Greenfield's presentation he talked about wanting to pull all of his feeds into one place - great idea! This has been a mission of mine and although I don't have a finished example - more to do with my lack of time than its complexity - I can share a few URL's that could help others. Bear in mind that I accomplished this relatively quickly using Dreamweaver™
The first is my band site (Machine 475) which tests the concept of pulling a Blogger feed (lower right column) into a branded site while also using the posts "a" tags to pull a user into another page within the site to get more info. This is an example of one feed but it really has no limits. Think iGoogle homepage.
http://machine475.com/index-rss.php
The second is an article from Adobe's site on consuming RSS feeds using Dreamweaver.
http://www.adobe.com/devnet/dreamweaver/articles/dw_xsl_rss.html
I hope this helps and would love to hear how others are approaching this challenge.
Cheers,
Jim Forrest
Peabody Essex Museum