I Love RSS
Right now, I'm trying out the RSS capability inside OddPost. If I subscribe, then OddPost would become the third aggregator that I've purchased (joining Radio UserLand and NewsGator).
The appeal of OddPost is that it makes RSS available via an IMAP server, providing a single point to read and archive RSS. I'm also lobbying FastMail (my IMAP email provider) to provide an equivalent capability and looking at scripting Outlook and NewsGator. And since I'm already at "Good Enough", do nothing is always a leading contender. We'll see what happens.