Was looking for solutions with regards to upgrading my RAM for my late 2007 macbook 2,1. Its pre-installed 1GB 667 MHz DDR2 SDRAM with 1GB split into 2- 512Mb chips for each slot. If you can help out with the recommended memory upgrade and the instructions for slots and sizes would highly appreciate it. Also I have just ordered a WD Scorpio Blue 500 Gb LPVT for my 80 Gb pre-installment replacement. I was told that the macbook model that i am using can only be upgraded till 250Gb. Is it true or this is just apple being apple?