I have just read an article on AppleInsider here, which states that the thing I have wanted for so long may finally happen! Basically, if you keep buying films and tv shows on iTunes (or even rip your own dvd's), you're going to keep running out of space. I bought a 1TB external drive last weekend because I ran out of room on my last one. Now finally I can start buying some of the new HD tv shows in the UK store now. But- there will be a time in the future when even a 1TB drive will get full. We should be able to buy videos from the iTunes store, yet have the option to not download it and just stream it instead, saving valuable space on our HDD's. Then, if you did ever want to download it you could, as you have paid for that right. Now, according to this article, it seems Apple may finally get this service up and running. Backing up wouldn't be a problem anymore, as if your hard drive fails, you can just download the vids again, or stream them. And you certainly wouldn't need to keep buying bigger and bigger hard drives (as I have had to). Opinions please.