The doctor pronounced both kids suitably healthy and recommended Triple Paste for Julie's diaper rash. We'll see how it works.
In the meantime, I've concluded that milk-based formula was not the cause of Julie's urpies. I was putting together the order for Marcon tonight in between feeding her and we both have a complete change of clothes, having discarded the ones that were covered with soy-based formula.
Now to order the CDs.