I have only 2 x 512mb in my macbook and I would like to upgrade. I figured possibly someone has some used or something. I have seen this memory on newegg for around 80 bucks so i am hoping to get some for 65-75 dollars. The prices are negotiable though. I know I am a new member but I am reputable and I use paypal so there really is no worries for you. Thanks for hearing me out.