I have a dyno hub which supposedly interferes with wireless computers. I would want wired. Another problem with temperture is that most that I've seen aren't rated for below freezing (the Cateye Commuter is 32-104F). When it's really cold is when I am most interested in knowing the temperature so this lack of low end range makes the thing useless.

That said, I don't use a computer on any of my bikes. I just don't find the information very useful. I do usually wear a watch so I can figure out my speed by time between mileposts if I need to.

Paul