Upgrade Internal harddrive or get external?

[Dpawlak]

I have a unibody macbook model 5,1. I currently have it dual booted with windows-xp so I can play games(upgrading to 7 soon), and I want more harddrive space. I am debating between buying a new internal and simply upgrading or just getting external. Does anyone know if running games off of an external decreases performance? I was also wondering how hard it is to install a new harddrive and transfer all the data from the old one, also how do you transfer the data between harddrives? Thanks

 

[BlueRevolution]

Does anyone know if running games off of an external decreases performance?

You might experience longer loading times, but I wouldn't expect a significant difference in actual in-game performance.

I was also wondering how hard it is to install a new harddrive and transfer all the data from the old one

http://www.ifixit.com/Guide/Browse/MacBook_Pro

how do you transfer the data between harddrives?

Carbon Copy Cloner