Hi all, I havea 2007 white macbook running tiger version 10.4.11, 2Ghz and 2gb memory. Now I read somewhere that you can buy the $29 snow leopard upgrade cd and install the Snow Leopard. I just wanted to confirm if this can be done in my macbook and upgrade directly from tiger to snow leopard without installing leopard. How easy or diffiuclt is it. is there a place where there is a step by step guide of how to do this. Can i just buy the CD from apple store? Any other concerns that i need to have please suggest.