I'm tempted to replace my aging 17" Core Duo MBP. It's not fast anymore, it's just "okay" speed. I have owned the MBA before, so it's not something new here... The model I'm looking at is: 2.13GHz/4GB/256GB Flash, 13" model. I do play games, but considering the X1600 can only run most games at low/med settings and it looks fine, I don't think the 320M would be any worse. Battery life is important for me. I use my HP netbook a lot more just because the battery life is amazingly good. Hard drive space... I 2x 1TB external 2.5" hard drives that I use with the Netbook and the current MBP. The integrated 500GB has plenty of space. Space is not something I'm concerned about but I would be getting the 256GB model. The backlit keyboard... I'm not sure about this. I do use my backlit keyboard a lot but its just on automatic and I don't change any settings or anything. I guess it could be considered a luxury that I just leave on but it does help, I have to admit that. Auto dimming of the screen... I disabled it. It's annoying when it just randomly dims and all that. Optical drive... don't even use it. Rarely I needed to burn a CD but I have an external usb burner. I know these are all "good" things on where I should get one... but convince me NOT to.