There is no denying it anymore, I have a little boy now, not a baby.
The first full day in our new house he slept right in his big boy bed, instead of the crib he had been sleeping in at Grandma's house. And, since its been like 3 weeks I think I can pretty safely say, without jinxing anything, it has been a smashing success!
At nap time he either plays for a few minutes before sleeping or goes right to sleep usually. We've only had 2 non nap days and he quietly played in his room the whole 2 hours both times. Which I'll take any day over him screaming from his crib for an hour! (Though really I think it was my fault because I put him down too early. He was always an early napper but he's starting to push his naps later now and it kind of caught me off guard!) At night he goes right to sleep and sleeps 12-13 hours without a peep. From day 1.
I really thought this was going to be difficult but it was so easy, TOO EASY really, that I think I'm still waiting for the other shoe to drop! I guess he was just ready to be out of his crib!
Also I think it helps that its all Cars stuff, even though before I had kids I totally thought character rooms were ridiculous and my kids wouldn't have them. I'm eating my words now!