I used the "Born Free" bottles for that reason, and I believe someone else posted a link to more brands- I think there are currently only a few makers of non-BPA bottles. They do leach at room temperature- but only in very minute amounts. Adding heated liquids to polycarbonate (#7?) bottles can cause up to 50x more to leach!
Unfortunately, there just hasn't been much research on this chemical in humans, exposed to small amounts over a long period of time. Most of the research has been performed by the industries which use this chemical, and most of their findings have (not surprisingly) found that it is not harmful in small amounts. That being said, studies sponsored by organizations with no ties to the industry have found problems, or can't rule out problems even at very small, chronic doses. In animal studies where they are exposed to larger amounts, there are dangers to the reproductive organs and other systems.