I ordered a new Air back in July and I got the 11-inch ultimate. I ended up returning it with the intention of getting it again at a later day. I have done my research and it seems the i7 gives the same battery life but brings more heat. I will be going with the 11-inch again and I think I'll go with the i5 this time, as I don't think I'll need the power and it will bring less heat. I don't do anything intensive. I'm a writer, so I just write. Along with other everyday things. Although I do watch iTunes HD video regularly. I'm not sure what things I will get into in the future, maybe light photo/video editing (nothing too intensive) and I'm into architecture as a hobby, so maybe at some point try my hand at designing/drawing. I will be getting a OWC SSD also, so maybe that will offset the minor speed boost of the i7 in launching apps, etc. Anyone else happy with the i5? I see no reason why the i5 wouldn't do it for me, but just asking to be sure.