I use MP3Tag v2.28 and that works pretty well. You can make mp3 tags based off file names and folder names. Also MusicBrainz is also a very good program that names mp3s based off a online database.
Okay, i see a like of sites that have RSS how exactly do I use it? It's just a XML document, so what program or tools do I need to inorder to read 'em?