http://www.sheldonbrown.com/lock-strategy.html

http://www.sfbike.org/?theft_locking

** Watch the video - - it's a hoot (and informative) **


and . . . http://www.youtube.com/watch?v=2ZDq1vkiZwA&NR=1

For locks, I would recommend (as did Zephyr) Kryptonite or On Guard. I like On Guard because they actually have an anti-theft offer that covers part or all of your loss (depending on the lock and the worth of your bike) if their lock is breached.