I really like the sigma BC 906. It has everything I need, but my needs are very basic. I mostly want to know how far I've gone and what time it is. All the other stuff is just nice to have. Do a nice job wrapping the wire, and you won't ever notice it. I have one with over 5k miles that I ride in all kinds of weather, so the durability seems to be pretty good so far.

If you ride in the dark, clip one of these to your helmet visor. All in for under twenty-five bucks.