Before you go getting a Neuros check out the dimensions. The thing is huge! Especially with the hard drive pack. That system is just ludicrous anyway.
I like my Archos Jukebox Recorder 20 errr... 30 err.... 40. Heck, the hard drive size doesn't matter because I can upgrade it whenever I want. It plus the Rockbox software is awesome! Sure, the screen is itty bitty. But I don't use it for asthetics. Archos + Rockbox you can't beat for the price. I threw some 2000mAh AA batteries in and it lasts forever. I guess the newer Archos' come with Li-ion though.
Plus, the Archos doesn't require any fancy software to copy music. It's used just like any other hard drive. No Music Match, WMP, or iTunes required.