I had the Creative Zen Micro (5GB). Loved it untill the Play/Pause button became dodgy and got a refund.
Nice software, looks smart...annoying light flashes on and off when it charges, pain in the @rse if you're trying to sleep.
Also gets FM radio which can be recorded along with voice notes.
I however went with a 20gig iPod in the end as the store wouldn't give me cash refund and could only order me an iPod.