Memory upgrade to fastest possible speed

I guess birthdays have its advantages as the last one I had, I was given a Mac notebook with all the necessary applications I needed both for work and play by my friends who chipped in all to buy me one. This was really great but somehow I was not contented with just 1GB of RAM so I decided to have a memory upgrade of at least 2 GB with a Apple memory I bought online in memoryupgrade.pro. Buying this module actually cost me even though I spent a significant time searching for memory modules online for a great price or in order to have some bit of savings for myself in my planned upgrade. I know laptop memory does not go cheap but I guess since memoryupgrade.pro is a known site for its quality, somehow, the price range they offered these memory modules seemed realistic for my budget hence I did buy from here and I guess it was a good choice for me in the end to but this from them.