My wife and I just bought our first IPADS. I also ordered a couple Incipio Lexington cases that are not here yet but I did get my shipping notice yesterday. Will i need a screen protector also? I would like to not ever scratch my IPAD and it looks like the lexingtons will offer good protection overall but I dont' want a scratched screen-ever. I also want the best clarity in a screen protector. Please advise if we need screen protecters with these cases and if so which one is best for the new IPAD?