I need more RAM for my Macbook Pro and am really confused as to which to buy. I bought my computer in June of 2008. It's 2.4GHz Intel Core 2 Duo. And it says 2GB 667 MHz DDR2 SDRAM. I looked on Apple's website and it says RAM is $200! But ebay has much cheaper. The brand is "PC2-5300 667MHz" and it says it works with "MacBook Pro Intel Core 2 Duo systems: 2.4GHz" Is this what I need?