I tried out my new Nike+ sensor today and it worked like a charm. I'll probably jinx it by saying that, but too late :-) The only thing I forgot was to calibrate the sensor before using it, so my distance was quite a bit off. Luckily there's a web site that allows you to adjust your Nike+ runs when you know the distance is off (like if you use a Garmin as well as Nike+ or run on a marked path). So I adjusted today's run down from 5.4 miles to 5.06, which matches the wonderful Garmin.
Now I need to go to bed and rest my tush for tomorrow's 40 mile ride. 40 more miles towards that dollar/mile calculation. Think happy thoughts for my aching butt! :-)