Hello, I would like to upgrade to the newest os X, but was told I need to upgrade my macbook before hand. Currently my system specs 2.16 ghz core 2 duo Memory 1gb HD 160 gb mid 07 model version 10.5.8 so if I want to run the most recent software what should I do ? Also could you provide links if suggested parts to buy. Another option I can consider is selling my current macbook and buying a mid 2009 the 2.4 ghz model. Would this be a better idea than upgrading my current model? I had a apple run test on all of my componets and they reported no issues. Thank you all in advance ! edit I would like to upgrade to 10.6 and consider adding windows on this macbook thanks.