Dedicated MP3 Players are on their way out, but it's not a totally dead market just yet. With smartphones growing in size, they don't make ideal workout buddies. You won't have to drain your mobile gadgets battery, either.
iPods have become synonymous with MP3 players, and the latest models are nice. These range from $50 for a colorful 2GB Shuffle to $400 for a beefy 64GB Touch. The Touch models are pricey, but include a Retina display and have access to the iTunes app store.
The best iPod value is probably the 16GB Nano, though. It packs enough storage for most playlists and even features a few apps and a quality touch screen. At $150, it doesn't break the bank.
If you aren't interested in iPods or don't need easy iTunes integration, check out the Sansa Fuze
Or Sony Walkman line of players. Both of these have 16GB models for less than $100. They support multiple formats and claim 20 hours or better battery life.
Battery life figures usually vary drastically, though. If you want to be sure, you can pick up all sorts of chargers and other mobile gadget accessories in my store.
You'll find earbuds and headphones in that section, too. I definitely recommend those over the headphones that are packaged with MP3 players. These are normally low-quality and could damage your ears.