I do love Mp3tagit and spent many hours re-doing tags for old music files. I ripped a lot of cds back in 2004 without internet access so they were track xx until last December. There is a lot to be said for the whole folded-browsing system. It's a bit cumbersome on the T1, but if I just want to listen to music, i'll play all the music in a folder and set it to repeat. For me, it's just background noise.
If you do end up buying a mp3 player, I recommend the sansa clip zip or sansa clip plus. It's small, clips to your clothes, is compatible with a variety of music format and can be opened on different computers, and it's cheap. I bought the maroon sansa clip plus last May from CompUSA for $30 and ended up giving it my sister so I could buy a white sansa clip zip for again for $30. It doesn't seem to have quite as good of battery life as the clip plus (10-12 vs 12-14) but it does have a pretty useless tiny color screen to display album covers. You can add those in mp3tagit as well and its a lot of fun
