Hello: I would like to replace my 2006 Compaq laptop celeron m. This would be my first mac. I am thinking about the standard MBA 4Gb. 1) It seems like the C2D is really antiquated. Wouldn't I be replacing a 5 year old pc with a 4 year old mac? If I keep it for 5 years, would it even be possible? in 5 years its going to be like 9-10 years old. 2) one negative that I have heard on this forum is that the battery is only good for 1000 cycles and can NOT be replaced and that the computer is a throw away after 3 years. 3) are the 15 MBP really not that portable? Any less portable than my current laptop? 4) ultimately I would like to get a 27 ACD to go with it. I am addicted to large monitors from work. I am an engineer and I have 2x 20" monitors running 1600x1280 at work and love them. My current laptop is 15". I am worried that going to a 13" screen will just be to small. I have never had one that small before. 5) thinking about getting parallels to run a stock charting program, visio, and project. How much of the 128 Gb would be consumed with office, parallels, windows, etc? Other than that I think its a very nice computer. I just can not believe that a 15" MBA would not be a huge success. But that is one nice thing about the 13" is the high portability and then connect to the 27 ACD for the big screen desktop. overall my use will be office products and web surfing. I have never played games. occasional photoshop for pictures. thanks for great discussion on this forum.