Hi, I am thinking of buying a Wii U for my children and was wondering how easy it is for me to hack it so i can play downloaded games from a hard-drive. I have a Wii but that has some software on it and is quite old, so thought i should upgrade and download some games that the children would like. Is this even possible on the Wii U. If so where do i start and is there a particular type of Wii U i should buy. Thanks in advance for your help.