I use the Onguard Bulldog Mini 7. I like it because its larger than a mini, but smaller than a standard. A lot of us use the Sheldon method of locking that you cited. With my lock I am able to go through the back tire, both chain stays, and the post I am locking it to.

Depending on your area probably any cable lock should work. Locking is more a deterrent than anything else.