You might look into Mewseek, I bought it and love it to death, you can sync the music from it to your ipod directly, though the only downside is you have to tell it to resync any time you sync to your computer.
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_1 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8B117 Safari/6531.22.7)