Alright, I'm still trying to get this all figured out. I finished phase 1 which was to get rss feeds to display properly. You can see that working here:
Linkbin.com
Phase 2 is the hard part, if anyone has any ideas or would like to help let me know. I want to give logged in users the ability to select feeds from a drop down box. They can add feeds to their own user made page which saves, so when they login they can go to their browse page and see the feeds from all the sites they added.