My current laptop is a two year old MacBook 2.4 core 2 duo. These days it is starting to seem sluggish and I am thinking about buying something new. I was taking the MBA into consideration because my MB is always with me, and something lighter would be nice. I use my MB mostly for school work and coding on the go. It triple boots Fedora, OS X and Windows 7. I do not need the most powerful laptop because I am running a email@example.com at home. Would the MBA be a down-step in performance? I am guessing a new one is coming out soon, will this have similar performance to my current MB? My other option is a M11x (SU7300) because small and a similar weight to my MB and I love to OC. Thanks in advance for the help!