My current baby is the 12" 1.33 GHz G4 Powerbook with 1.25 RAM running 10.5.4. This has been an amazing computer, and has treated me well over the last half decade. However, I am afraid that it is on its last legs. I am learning towards getting the 2.13 GHz MBA with 128 SSD. This would be my PRIMARY computer. I travel approximately once per month, and value size, portability and function. My laptop goes wherever I go. At home, it usually remains shut, as it is attached to an external monitor, keyboard, and hard drive. My primary uses are for email, Internet browsing, P2P/file sharing, online video streaming (watching), Microsoft Office/Excel/Powerpoint, accessing work VPNs and using associated work-related programs, and occasional photo editing. Would the current model MBA last me another 4-5+ years? I am worried about the C2D, as it is "relatively" older technology. So my options, in order of preference, are: 1. Wait for the next MBA refresh. Hopefully this happens sooner rather than later. 2. Purchase the 2.13 GHz MBA with 128 SSD. 3. Purchase the 15" MBP base model. 4. Purchase the 13" MBP base model. Again, I am worried about the C2D processor. I don't necessarily need the latest and greatest. I just want something that fits my needs well and will last a few years while withholding the test of time. Ideally, I'd love to get another 4-5+ years out of my next computer. Thoughts, suggestions, and comments appreciated.