This one has really good reviews on amazon, and is about the size of a 3x5 card. It should be mountable with one of those generic gadget mounts:

http://www.amazon.com/Sony-ICF-S10MK...1423677&sr=8-1

I have been thinking about doing the same thing. One downside of commuting by bike has been that I miss the news in the morning. I'll let you know if I get one.

-Greg