I too have the Cateye Mighty 3. Basic computer and the cheapest available locally. I find it great on some aspects, but I also have a few reservations about it.

PROS
- works fine, even at -25 C and even in the rain;
- it's on its third year with the same battery;
- not too big, yet easy to read in daytime.

CONS
- no backlight to light the digits in the dark (major sore point); a system like the backlight of Timex watches would be great;
- always shows instant speed (the other reading alternates according to what you select); I would prefer to always show "Distance 1" and have the other reading alternate between speed, maximum or average speed, time of day...
- the clock should also display seconds.

Regards,