Garmin forerunner 305 with GSC10 sensor and the bicycle quick release kit is relatively inexpensive and you don't have to wait for speed and cadence since the sensor provides data when GPS signal is unavailable.
Best thing is although its small inobtrusive it allows me to document my workouts, collect/track my performance and physical fitness.
Mike
Last edited by aboatguy; 06-04-11 at 04:08 PM.