2 Year Old Baby Girl`s Birthday In Arizona

Hi...
I am loooking for a character who will cme to my home & entertain the birthday girl & kids....v r planning to have the theme "dora the explorer". My girl is 2 years old & there will 8 other kids of age ranging from 1-5 for the party...I want the character to do sme dance,entertain the kids & do the baloon filling etc....i need the character for 30-45 minutes..Can u please suggest me from where i can find this character....i am looking for the character Dora 0r Barney...iam located in Scottsdale area in Arizona State.can u pls tell me what will be the rate for it also