I just recently acquired a Black Duo Core 2 Ghz MacBook, which I am really loving but I the 512 Mb of Ram that I got with it is just not as fast as I would like the machine to run. I've done some searches around the web and have found that the brand Memory Bank has the cheapest prices for 2, 1 GB sticks (about 180 bucks total). I am unfamiliar with this brand so I wanted to ask all the experts out there if they are worthwhile or is there a better manufacturer that everyone would recommend. Thanks!