Chosen Solution

So before I even had fun with my Mac, I noticed that 160gb was far too less for my daily routine of storing stuff. That is why I upgraded to a WD Scorpio blue 500gb 5400rpm. Worked out fine. I installed a 500gb drive because apple says it can only hold up to 500. Is it possible and safe to install a 640,750 or even 1tb drive in my Mac? A side note: does 7200rpm affect the computer at all? Thanks a lot!

1.0TB WD Scorpio Blue 5200RPM SATA 12.5mm HD with Advanced Format Technology - Fits all Apple MacBook/MacBook Pro ‘Unibody’ Models (13/15/17") http://eshop.macsales.com/item/Western%2