Garmin FR60 watch for $103 on amazon WITH ant+ heartrate: http://www.amazon.com/Garmin-Lilac-F...3788055&sr=8-4

Garmin GSC-10 speed/cadence ANT+ sensor for $35: http://www.amazon.com/Garmin-Speed-C...3788097&sr=1-1

Those 2 will give you all the functionality of the Garmin Edge 500 bundle pack, except no GPS, no powermeter support, and a smaller wrist watch type display.

You'll still get heartrate and logged files that can be uploaded to websites to analyze the whole workout.

Plus down the line if you ever have to have an Edge 500, you'll already have all the sensors you need since its all ANT+ stuff.