I was thinking of replacing the stock, 60gb 4200RPM Toshiba HD in my 1.33ghz 15" Albook with a Hitachi 60GB 7200RPM HD. I've been playing World of Warcraft a lot lately, and I have noticed that the only time the game really stutters is when I hear the hard drive ticking, reading data. Because of this I believe that WoW is somewhat demanding for HD speed which would explain why it runs poorly on many notebooks. Should I make the upgrade? I won't be gettting any extra space. Is the speed alone worth it?