Okay, i have the 2010 macbook with 4gb of ram (as apposed to the standard 2) and i was wondering if it would be worth upgrading 8gb? Apple say 4gb is the maximum but everywhere else say otherwise. As far as i am aware if you upgrade ram it doesn't void the warranty but what if i upgraded it above what apple says is possible? So, would i still be covered? and if i did improve it would there be a noticable difference? Thanks