After some advice. First off here's what I currently have: MacBook Pro 13" 2.26GHz 320GB - Mid 2009 version Been thinking about upgrading my RAM for a while now as I still have the bog-standard 2GB installed. I was looking to upgrade it to 4GB a I am starting to see it beach ball a lot when using several programs at once. (e.g. Word, Powerpoint, Safari with 15+ tabs, iTunes and iPhoto both with relatively large libraries) However, am I missing something? I went on the Crucial UK website and found that 2x2GB modules for my MBP would cost £35.99 including VAT, which I thought was really cheap and was just about to purchase! However, underneath this I saw 2x4GB modules coming in at just £75.59 including VAT. Which to me sounds insanely cheap to max out my pro, I'm sure just a couple of months ago (November time I think it was) the price for these was £200+. So assuming this price is correct I'm thinking of just maxing it out to 8GB. Would this be worth it? I do tend to use many programs at once and also bootcamp Windows 7 occasionally. Im not planning on getting rid of my laptop for at least a couple of years. Has anyone upgrading to 8GB in this laptop? Is it worth it for the price? Is there a noticeable difference going from 4GB to 8GB? Would it increase the re-sale value by much? Anything I should be aware of? Any help would be greatly appreciated.