I think you both are right, going for yhe 64Gb should maximize my satisfaction adding less than 1/3 to the total expense. I was almost convinced, I just needed someone to support me

But I am a bit scared by the limitation in file sharing. I am currently keeping all my movies and music on my MiniMac's HD (in my home office), and usually I watch them using my Windows7 laptop in bed or on my couch.
Are you saying this won't be possible using the iPad ?
So the WI-FI can be used only to connect to the Internet ?