Use TeconMoon's Wii VC injector to install Wii games to the Wii U menu. It's much more elegant than booting into vWii every time you want to play your Wii games. Plus it gives you some cool control options, like having the GamePad emulate the Wii Classic Controller, making some games playable in "handheld" mode. And yes, you only need 1 hard drive this way.