I rarely comment on other software than Second Life here at all, this here is one of the rare cases.
Feeddemon, argueable the best RSS aggregator for Windows out there, is now free as in free beer. The company that bought it from Nick Bradbury a while ago, Newsgator, is now giving the fully enabled version away for free since the beginning of January. Before that you had to buy this version for 25 US$, which was also quite a good price if you take a look at the features and sheer speed this beast offers to you. You want a feature? Bet that in 99.9% of the cases Feeddemon has it and much, much more!
If you are really a news junkie, then this is the only program you'll ever need! The same goes now for NetNewsWire, the standard RSS aggregator for Mac OS X, backed up by the same company.