M.C.
I'm not sure about the Born Free bottles but I've heard that evenflo comfort ease is very similar to avent and is BPA free. it also says on the box that it is "similar to avent." they're also alot cheaper. I tried to post info earlier (it got removed) about babies r us taking avent bottles back. They are taking used avent bottles (nipple, ring, lid and bottle) back and letting you exchange them for BPA free. they give you the current market price. you don't have to have a receipt either. I just took 6 of the 4 oz bottles in today and got $28 towards BPA free. Just thought i'd try to let ya'll know.