If you look at PoE there are reqs for armor and depending on the type of armor you're looking at it may require either strength or dex or intelligence. I agree with this type of structure. I think the heavy armors should require strength. Maybe the cloth armors are for sorcs and should require intelligence, etc. Nothing wrong with that. As far as movement speed penalties, I disagree. That is just kind of a pain. In some games you can mitigate this with certain skills or levels so while it is a pain to deal with, at least you can mitigate it sooner or later.