Having trouble deciding between getting a TimeCapsule or an Airport Extreme with a WD External Harddrive....I think financially it'd be about the same amount. Basically I just want a router that will be able to share media and stream it. I don't really have any interest in TimeMachine back ups, and I know that's the only thing Apple advertises the TC for, but I also understand it can be used as a NAS. I hear that the drives in the TC are/were kinda wonky. Any opinions are appreciated.