Got my Otterbox Defender Case here the other day. Superb protection for my phone, makes it waaaay more shock resistant, and also makes it water resistant. Note – not waterproof, just water resistant, but it cover my needs. I have a waterproof bag for moments when the going gets really tough (Birkebeinerrittet last year for instance).
I have access to all features of the phone without problems, loving it!