L.A.
Take apart the crib and have her sleep on her crib mattress up against a corner of the room, till you can get her a bed. She could really injure herself falling out of that crib, or get tangled up on it trying to get out..
Once you decide on the size of the bed, let her go and pick out her big girls sheets. Purchase a zip up mattress cover so you will already have it covered for when potty training begins..
You may have to walk her back to her bed over and over for a while, but she will get the idea you are serious.. Also you may notice she sometimes ends up just sleeping on her floor and that is ok also.. just cover her with a blanket..
This is also the time to have a bedtime routine that allows her to calm down before going to sleep. No excitement, quiet story before bed.. maybe rub her back as you read.. get a sound machine to make the outside noises disappear. no bright lights or loud TV's and cell phones.. going on.. She will think she is missing out if there is a lot of activity going on within her hearing range..
She is growing up, just in time for the new baby.. encourage it..