Potty training - such a nuge undertaking. I have a daughter as well, she is almost 3 now and we started the training arounf 18-months. I bought all kinds of potty training seats, toilet seats, training panties, books, DVDs, etc. None of them really worked, she just wasn't ready. We are now about 95% potty trained, she will be 3 next month.
So here is my advice - don't rush her, she will be ready in her own time. That said, I recommend the Once Upon A Potty book and DVD, the Baby Bjorn potty training seat (internet order) and buying some fun panties that she will be excited to wear and sad to get dirty. Another trick we used was setting a timer and having her try to use the potty everytime it went off. I think we started in 10-15 minute increments and are now up to 1-1.5 hr increments.
It is a process and not a short one, so have patience and lots of praise for her when she is successful.
Good Luck and hang in there