hey, should I buy it new or old apple tv? I will mostly rent movies and TV series and a look at youtube. I see the old apple tv has a hard drive. and it could be nice to have if you will take with apple tv and watch the rented movie with friends. but after reading this page: http://discussions.info.apple.com/thread.jspa?messageID=12208810 I am a little worried. tv series will not be available at the old apple tv? what should I buy? the new rates for rental of movies and series apply the old apple tv? pleas help me!