So, erm, yeah, I'm ready for my second Mac. And the 13" MacBook Air, is looking great. I'd like to go with a 1.8 Ghz i7, which has 4GB of memory. But I'd just like to know if it's good enough for what I do. Safari and iTunes are always open. I do some composing in GarageBand, although that program isn't always running. I also play various games and use various apps from the App Store, such as Lego Star Wars. So can the MacBook Air handle GarageBand, Safari, and iTunes all open at once? And I'm planning to purchase Logic Studio. Does anyone know if that hangs a bit on the Air? It seems like it's a resource-demanding program.