Lorel and Incog,
Ferber didn't sit well with us either. We tried CIO once with DD2, and he cried for well over an hour. He would stand up in bed and shake the crib rails. He hated his crib. When we dismantled his crib and put the mattress on the floor (at about 1 year of age) he slept much better.

He still doesn't sleep great, and we don't know why. He slept from 10:00 until 5:30 last night, and that's pretty typical for him. Yikes!