OK, so i plan on buying a 17" MBP this summer after they update it (cmon santa rose!) and lets say that they have similar options for the hard drives as they do now. The regular is the 160 GB 5400 rpm or for 100 dollars less you can get the 100 GB 7200 rpm. So I'm thinking itll be worth saving money and getting the faster hard drive, even though its smaller. I have an external 250 GB right now that has a little under 100 GB free right now. I plan on using the main internal for recording through Pro Tools and for applications. Everything else will go on the external, maybe buy another one. So, ive heard that even though it has faster rpm, doesnt necessarily mean faster. I remember seeing those tests where 7200 is definately faster compared to 5400 when theyre both empy, but when they both have say 50 GB of information on it, the 5400 would be faster since it has 110 GB free and the other only has 50 GB free. So in most cases, would the cheaper, smaller, faster hard drive be faster? Saving money is definately a big plus.