I need more room for my Mac Pro Laptop and I am not sure what brand to go with. I do know I want 320GB or more at 7200 RPM's. My local Frys has Western Digital and Toshiba. They have the specs, though waiting for a sale if I get one of those. For those who have done this which drive do you prefer? I am not sure about Toshiba I like Western Digital, but I am used to 3.5 SATA drives not 2.5, so that part is new to me. Thanks for any input on models.