Store Umbilical Cord blood, and Where?

gambit3 writes: My wife and I are expecting our first child in 3 months, and one of the decisions we still have to make is whether to store our baby's cord blood. Even if we decide the upfront cost is worth it, there is still the question of using a public bank or a private one (and which one to trust), and whether to also store umbilical cord tissue for stem cells.
Does the slashdot community have any experience and suggestions?