I have a 5 G Creative Zen Micro (very small MP3 type device)
It's very sleek, got a touch screen and all sorts of fancy stuff, AM/FM radio, broadcasting thing (makes me able to put it near a stereo and listen to whatever is on the device)
I got an iRiver too... a 20GB H10 or something. I'm really impressed with it, as long as you download the new firmware it's great. 16 hours battery time, which is fantastic and it's really durable (been dropped more than a couple of times). Only thing I don't like is it's size which is fairly chunky.