My MBP is a pre-unibody one so the HDD is not user-serviceable. The 160GB is becoming limiting so I got a quote from an Authorized Apple Service Centre to u/g it to a 7200rpm 320GB so as not to void my warranty. How would this affect the AC in the event that my MBP needed repair and Appple decided to swap it out for a replacement rather than repair it? Would I only get a 160GB disk in the replacement? Bear in mind it's a late-2007/early-2008 (3,1) MBP that I bought from the Refurb Store in Jan 2009 (hence why I still have over 18 months AC left on it). Also, when I bought it, it was advertised as having 2GB of RAM but when it arrived it actually had 4 - I guess it was swapped out and the previous owner had u/g from 2 to 4 and sold the original so couldn't replace it when they sent the MBP in for repair. Again, would I only get 2GB if the machine was swapped out?