Good evening everyone, this will be my first Mac and we are excited. I am looking for as much detail as possible. First of all, what is the biggest difference performance wise between the Macbook and Macbook Pro? Basically what would be the difference between these two labtops Macbook Pro MacBook 15 Inch Aluminum 2.4 GHz Intel Core 2 Duo 4 GB 1066MHz DDr3 SDRAM 2X2gb 320GB Serial ATA @ 7200 Super Drive 8X Backlit Keyboard Or Macbook MacBook, 13-inch, Aluminum 2.4GHz Intel Core 2 Duo 4GB 1066MHz DDR3 SDRAM - 2x2GB 320GB Serial ATA Drive @ 5400 rpm Super Drive 8X Backlit Keyboard besides the size of the screen the only difference I see is 320GB Serial ATA @ 7200 instead of 320GB Serial ATA Drive @ 5400 rpm . Does the 320GB Serial ATA @ 7200 instead make a big difference? The Macbook Pro is about $400 more. Is this worth the 400 dollars? I am big into music I want to store a lot of MP3's my wife wants to do some editing and we were wondering if these are decent gaming labtops? Any info would help.