I love my RSS reader. I have hundreds of blogs and news sites I regularly follow, so having an excellent RSS reader is crucial. Currently I use NetNewsWire, but I've been thinking of switching to Acrylic's Times. They have a completely new way of showing you RSS. Instead of an email-type box, it's similar to a browser window, and when you click a link, the top pages forward and you see the story behind it.

Right now I'm using it on their 15 day free trial (it's $30 after that), and so far, I love it.