Annick Goutal's Petite Cherie has a pear note, actually, but it's lovely.I don't think she has a peach one, but you would probably like Petie Cherie.
Benefit's Maybe Baby is very peachy and wonderful. Tommy Bahama has a bit of peach in there, also. In the same peachy-floral vein, there is also Antonia's Flowers Floret, which is pricier, but gorgeous and my favorite peachy scent. For pure peach there is a perfume called Snow Peach by Renee somebody or other. They used to have that at Luckyscent.com, but I don't know if they still do. I'm also a big fan of the Jo Malone that's already been mentioned.
I love peach scents, can you tell?