I'm looking at buying a used first-gen MacBook Air for my Dad to replace the Powerbook G3 Pismo he's been using. Obviously, it will perform much better than the old G3. Yet, I would like to hear first hand users' experiences with the video performance. The Pismo can't stream much of anything from the web, so if the first-gen MBA can stream HD from the web, or even 480p smoothly, I will be satisfied and will probably pick one of these machine up on eBay for 500 bucks or so. Thank you for sharing!