Hi, I just bought a 2nd gen Apple TV mainly so I can stream my home movies to the TV From iPad. This works great, but I am wondering about the rest of the Apple tv's features. With DVD rentals becoming at 'at risk' entity, I love the idea of streaming videos. We currently are on a 40gig an month broadband tariff. I am not sure if this is enough if I stream a couple of films a month on top of other things I do? Q: how much data is streamed for an average HD movie from iTunes?