I recently purchased a 13" MBP and have a few questions: 1) The MPB comes with 4 GB RAM. I'm thinking of upgrading this to 8 GB RAM. What is the best brand RAM to get? 2) I mainly use my computer for web browsing, music playback, photo editing and other small tasks (no heavy video editing or gaming). Is a RAM upgrade unnecessary, or will 4 GB suffice for my needs? 3) As with my current 2008 MB, I plan to use my new MBP with an external monitor, keyboard, and mouse. Is there any harm to the computer using it as a desktop (i.e. keeping the lid shut) 80-90% of the time? I just want to make sure I'm not damaging my computer in any way by keeping the lid shut most of the time. Thanks for any help!