Good question, and I'm not sure. Is there any chance that when the SSL cert is installed the admins can also set up a redirect so that any calls to "http" are redirected to "https"? I think that is what people do a lot of the time when switching to SSL - at least that's what I did with this site when we switched it over.... But I'm not a SharePoint admin, so am not certain whether that is something they can / should / will do. Might be worth asking?
Hilary Stoupa