I am thinking of buying a Macbook Air (2011) 13 (i5) to replace my Macbook Pro (mid-2009) 13 (2.26Ghz). I would like some feedback on this. I carry my laptop in my bag to uni every day, so I would definitely enjoy a lighter load. I am a music student, and although Sibelius works fine on my current laptop, some of my more complex projects on Logic are just impossible to run due overload. This is partly due to the slow 5400rpm drive. From benchmarks I conclude that the 1.7 Ghz i5 is significantly faster than the 2.26 Ghz Core2Duo. The SSD is also faster (and, to a lesser extent, the RAM), so all round I hope to see much better performance in Logic. I am thinking of purchasing a Samsung Optical Disc Drive to backup CDs I purchase, and all my movies will be on an external drive. The added resolution is also an advantage. For large score editing I have a 22 monitor at home which works fine. Is this a good purchase?