Quick version... I have a CD MacBook and considering upgrading down in the distant future to a MBP. Is the volume louder on the MBP? I can hardly hear my MB's sound, especially if there is other noise in the room. Long version... I'm thinking of getting a cooling pad (yes miles, I know they don't really cool) because I want something to put between my mattress and the bottom of my MacBook that allows some airflow. I came across some that have built in speakers and I was wondering if I should buy one of these or just get a less expensive passive one. Of course, it could be a year or so before upgrading, but honestly, I'm really considering getting an aluminum unibody MacBook, just because.