Video Monitor question

I want to get a video baby monitor for the bedroom. Do any of you know if there is a company that sells one monitor with two cameras, or do you know if the camera can "see" both babies if they are in two separate cribs??? I am keeping them in one crib, if all goes well, but I am wondering about this for the future.

I believe I just saw one in the One Step Ahead Catalog where it comes with one camera, but you can add a second one.