We did it. Sold the crib and moved over to the big boy bed. It's been somewhat anti-climactic. Nap times have sometimes turned into "i can reach my toys now, so why would I stay in bed" times. Two falls out of bed around midnight. And the "bedtime guy" selection has become a bit longer. (see below)
All in all, pretty smooth transition. Except all this growing up makes my heart hurt a bit.
"Is this all you have to offer? I'm not feeling it." 
Thumb and Blankie, a man's best friends.
