They should be fine :) If you use SEARCH type in Gut Loading and there should be some forums that pop up with a greater variety on what you can give them. Some people even have recipes on what to give them.
Its fine to handle the chameleons, as long as they let you. My male hisses and sways at me, opens his mouth while doing so, so we tend to leave him alone. The Female we have does the same. But if we need too we handle them.