AIDS/Lifecycle Practice 1

Now that the event AIDS/Lifecycle is just 6 weeks away, and now that the California Summer of 2008 has arrived (Forget the afternoon, but the evenings are amazingly refreshing), I shred my lethargy and went for my first practice ride from Cupertino to Stanford and back a total of 24 miles at a stretch. Did it in 2 hrs, my usual speed. I know it's very less and I feel the pinch every now and then when somebody overtakes with ease :-(. This is a good beginging and if I keep commuting to office on my bicycle that should serve the minimum training. But I need to build my lower-back muscles so that they are strong enough to keep in the riding position everyday for 80 miles for a week. My back started aching towards the last quarter of the ride today. Time to go to gym.
Here's the map from Google Pedometer
http://www.gmap-pedometer.com/?r=1790162