\/ YAY for TT
It sounds like it - we are in a similar position.

Rinn decided last Friday (week ago) to ask Daddy (in the middle of our shopping at the markets) to "Potty"
Now - we bought her a potty about 4 mths ago - as she was interested in what we were doing in the toilet. So on occasions - we would take her nappy off and let her sit on it. Nothing ever happened.

The day after her first asking - she twice did a wee on the potty. They were both 'prompted' by us. She asked for "Big Girl Nickers" that morning - so we did it. Sunday was a great success for her.
A big portion is us prompting her to goto the potty, If we leave her too long - she gets sidetracked>
Dh was saying that today she has been going on her own - so I wonder if that "noticing" has kicked in.

Honestly - follow her lead. She will let you know where she is at.
Watch her actions - Rinn seems to act differently and the facial actions are amazing.
Talk to her. Tell her bout the nickers and the nappies. Rinn has worked out that Nappies (nuckies) are for sleeping in and sometimes for the car (I am terrified of having to clean out the carseat :-#) She also knows that if she wants to wear BGN she needs to use the potty. And we now have this big thing of 'flushing it all down the toilet' iykwim??
Let her feel what it is like when you wee in your nickers (or poo)
I found a book at Borders tonite called "Big Girls use the Potty" it has sticker for rewards! So I wonder if this is going to help her!
I will keep you posted.

Good Luck!!!