Right I have decided that I am going to buy a 1GB Kingston Brand RAM for my powerbook G4 KTA-PBG4333/1G. But a computer guy at the place where I work question whether this is value for money. He points out that if i buy the brand name RAM, but the Powerbook G4 comes with a value RAM then the I am not going to get the full benefit of my brand RAM. This he said was due to the value RAM slowing down the brand name RAM. Is this correct?!! or have i mistaken what he was saying. I thought the difference between brand and value RAMs were that the brand RAM are tested more and come with lifetime warranty. But overall the performance are about the same in time of speed. Whats the likely chance of Apple having value RAM to start of with? Any comments?? I am a bit confuse??