Hello im hoping you can help me, ive been looking around but confused abit. At the moment my Macbook White 2006/7 has a Fujitsu MHZ2120BH 120GB 5400rpm 8MB cache SATA HD . It is waaaaay too small for me, i want to upgrade to a faster (if possible) and bigger (500gb-1tb) HD. Would buying a 7200rpm 16MB HD SATA II benifit me in anyway? or would it be a waste of money? for example would my macbook limit the RPM or the Cache? and would SATAII even work? im just trying to find the best HD for the money. Also another question (less important) i have 2GB (1gbx2) RAM atm. Would replacing 1 of them with a 2GB make a big difference? i know that 3gb is the most my macbook can handle. (i think :S) if some1 could link me to the correct drive/memory parts for my macbook (on amazon if possible) i would really appreciate it! i have around 50 uk pounds to spend.