Yes, I know, most computer geeks have been using it for ages. I've been wanting to as well, but haven't spent the time to find a good reader. I experimented with it in Thunderbird last year, but it was too basic.
Now that I am on a Mac (through work, but it is a MacBook Pro - thanks Curtis!) I've searched out a great RSS reader - NetNewsWire! I compared it to NewsFire, but the latter didn't have as many features and forced me to switch windows to read the feed. So far I'm loving it!
It's companion for PC is FeedDemon, although I haven't used it yet. Check them out!