So, I like what I've got, but I have been considering something better.
I've seen the ContourHD before -- friends have them. Hadn't seen the Gopro HD Hero. The latter looks a bit better, though the former is cheaper.
The Gopro seems to be lighter (3.2 oz vs. 4.3 oz) -- not that that really matters while riding, but I also want to strap them to R/C planes and take pictures that way. Actually, considering that the Gopro will also take 5 MP shots every two seconds, I think that would be the tipping point in it's favor.
I need to stop buying stuff! But it looks so neat!