Hi I am looking for a 512MB stick of PC133 SDRAM for my PowerBook G4 Titanium. I currently have 768MB of RAM and want to max it out to 1GB (by taking out the 256MB and replacing it with a 512MB). So does anyone have one they want to sell. It must work in my Mac. I have been looking around on eBay for RAM - and it is still quite expensive. For guaranteed Mac compatible ones you are looking about £27. Are the TiBooks as fussy about RAM as the older G3 PowerBooks are? I know when I was looking for RAM for my Lombard and Pismo it needed to be 16 chip (8 on each side) and not 8 chip (4 on each side or all on one side). Is this the only thing to look for. I was hoping to pick up some non-Mac specific RAM at a bargain price - or at least cheaper than 'Mac' RAM. Do they have to be low-density sticks. Simon --- Visit my Mac site at http://www.simonroyal.co.uk. Or Skype me on 'Simon-Royal'. (Apple PowerBook G4 867Mhz, 768MB RAM, 80GB HD, SuperDrive. Mac OSX 10.5, 10.4 & 9.2.2...)