I’ve always been impressed with the sound quality from my iPod Shuffle, but today I plugged it into my Sennheiser HD590 headphones instead of the little earbuds, and I was blown away. Amazingly good sound. It depends on the quality of your MP3 files, of course, but if you’ve got some good headphones, give it a try.
The band that goes across the top of my head is substantially larger than the thing storing and generating the music!