It sounds like you have a lot on your plate!
We use Cetaphil on the boys, but my husband uses Jergens Ultra Healing. The St. Ives Intensive Healing, Curel and Aveeno are nice, too, better than but more expensive than the Jergens. Unfortunately, even among us with the same type of ichthyosis, there is so much difference in how the skin responds that all you can do is try different things.
Keri and Lubriderm were way too thin for my husband's skin, and the Vaseline cream made his hands look like he hadn't used any cream at all after about 3 hours, plus he was having trouble walking. It was okay for the rest of his body, though.
Reticular Ichthyosiform Erythroderma with white spots.
Husband, Nathan - 5, Elliot - 2, all affected.
I also have an unaffected daughter and am pregnant, due Oct 12, 2008
Ichthyosis-en-Confetti Type 2
Husband, Nathan - 10, Elliot - 7, Oliver - 4, all affected.
I also have an unaffected daughter, age 8.
email: jennifer at confettiskin dot com
facebook - find me on "ichthyosis mommy spot" or "friends of ichthyosis"