Hello, i'm pretty new to Apple computers, and i recently bought an iBook G3 on eBay. I've fixed it up and installed OS X Tiger on it, which i must say i am very pleased with so far. However, i really want to upgrade my iBook, with more RAM and a larger hard drive. My question is this....can i use ANY RAM that is 144-pin PC100/133 SODIMM, 3.3V up to 512MB in size? By the same token, can i upgrade my hard drive with one from, say, Western Digital(120GB) or Seagate(100GB) or does it have to be Apple proprietary? Please forgive my noobness. Any help is appreciated, thank you.