DD is going to be 2 in Sept and i'm wondering when it's a good time to start potty training. She ask to go to potty, but she's never actually went in the potty. She'll sit, wipe and say "no pee pee" and then comes down.

So, I wanted to get a feel for what everyone else did.

1) when did you start potty training?
2) what type of things did you buy in preparation for it?
3) when do you start using pullups? Are you suppose to be using pullups when you potty train?