I would like to upgrade the RAM in my ladyfriend's iBook to 512MB, as it is currently running on 256MB (128MB x 2). She has a 500mhz iBook, (so I will have to take out one 128MB and install a 256MB one). Her computer is currently running very slowly. I'd like to install some more RAM and do a clean install. Two Qs: Do you think more RAM will increase performance? What are the best and cheapest (safest) places to shop for RAM? As always, your help is greatly appreciated, thank you!