I complained recently about wanting more bands to offer RSS feeds; some folks have actually done something about it and created Band News, which offers news from the official sites of over 600 bands, with the ability to create a custom feed of bands that you're interested in (eg, my bandnews feed. If they're quick about adding missing bands, this could be a very very handy resource.

Update: Pretty cool, but bands starting with The shouldn't be in the T section.