I have a macbook pro 13 inch, and was wondering if upgrading the hard disk will void the apple warranty. If it doesn't void the warranty, then is it better to do it a a mac store, or can we just go to any of the shops in lowyat and ask for an upgrade?

Is it advisable to use a faster 7200 rpm disk? The apple store only allowed configuration using 5400 rpm disk or solid state drives.