The Nike MP3RUN is one of the coolest products for athletes to come about in quite some time. It combines a tiny, disc shaped 256MB MP3 player/FM radio (for hours of music) with a separate pedometer (which attaches to your shoe) that tracks speed, pace and time and beams the information (via Bluetooth wireless) back to the portable player where users can store up to 200 workouts tracking performance over time. Much like a digital coach, athletes can upload information to nikerunning.com training log and compare workouts, plus have fun listening to up to up to eight hours of music on its FM radio. $280. www.philips.com