Here is what my family got me for fathers day - a mini key fob camera!
This thing is super small and it shoots in 720 HD!
I think the quality is pretty good too.
And as an added bonus, the thing is perfectly sized to take a ride around the layout!

Copy and paste the link below for a cab ride around the layout:

http://www.youtube.com/watch?v=Vq-0TiSLdbs&feature=c4-overview&list=UUohIUOdPzjFJbz0DCXI9kGQ