iGuess

That it's a flash system is good for those who ride on motorbikes across bumps, iGuess.
That it's only $99(US) is good, iGuess.
Half a gig of space is more than enough if you're gonna be regularly updating the playlist, iGuess.

But don't get sucked into the marketing that it's so fun to not know what song is coming up next.
If you already own an iPod, here's a quick and easy way to turn it into an iPod Shuffle.