I can't be alot of help, but all I can say is do whatever you can to get her to sleep on her own, do not lay down with her or let her sleep with you. This was my downfall, we took the paci away at 2-1/2 also and that also stopped my sons sleeping, I made the mistake one day of being too tired and I layed down with him and ended up falling alseep, it has now been 6 months and I am unable to get him to sleep on his own, we have tried everything, including going into a specialist to get ideas, the only idea of hers we have not tired is the locking him in his bedroom and letting him cry and never going in their (even if he throws up, which he does if he cries to hard) until morning no matter what, that is not an option for me cause I beleive that is just cruel and he is too young to be subject to that kind of emotional torture. Nothing else she suggested has worked so far, so I have just resigned to the fact that I will have to put him to bed like that until the day comes when he decides he wants to sleep on his own - Give me strength LOL.
So my only advice I can give to you is DO NOT stay in her room until she falls asleep cause it may never end :(. I do LOVE the idea someone else gave about the backwards monitor, I had never thought of that, but you better beleive I will give that one a try.
Good luck to you and your daughter.