Hi JB! Like the very first poster, I followed Dr. Weissbluth's "Healthy Sleep Habits, Happy Child" using the extinction method. We started sleep training at 6 months and have never once regretted it! When we started, I mentally prepared myself by saying "there will be crying, this could take a week, just be patient and consistent". With extinction, we put him down and that was it - no going back in. Some people will say that's mean; teaching a child to sleep is not mean. People will say they cry for a reason...of course they do, because they want you to come back and spend all your time with them! When your kid is 3 and wants to eat candy bars all afternoon and cries because you don't give them candy bars, do you give in and feed them candy bars just to make the crying stop and appease them? No, because you're the parent and you know overindulging isn't healthy!
I dreaded trying CIO. I was scared to death that it was going to be awful. We were used to putting the baby to bed at 9:00 and we were moving the bedtime back to 8:00 and I thought, oh good heavens he's going to get up earlier.
Night #1 - 45 minutes. Night #2 - 10-15 minutes. Night #3 - 2-5 minutes. And...he eventually wound up with a 6:30 bedtime and a 6:45-7:30 wake time. During the day he was so much happier because he was well-rested.
Good luck to you. Feel free to PM me with questions or if you need support. I'm sorry that people will take this opportunity to make you feel guilty for your decision. Of course, they don't have to live at your house either... :)