Hello. The MacBook Pro 17" (2010 model) by itself is not that heavy. However, if you carry it for many hours daily and you have other stuff in the bag (the bag alone is another 1.1kg), you may want to keep it light. My questions are: 1. Anybody knows the correct weight, in kg, of the superdrive? 2. If I want it to be removed, is it recommended to ask the Genius to do it? Will they do it? Will that void Apple Care? 3. To people who have this done. Do you feel noticeable difference in weight after the drive has been removed? 4. If I have the drive removed, will dust enter the computer more easily? 5. Can I turn the superdrive into an external drive by buying an external case for it? Any recommendation on light, portable drive? I seldom use the drive except for installing software. Thanks.