i recently received a free iMac G3 400mhz/390RAM/10GB HD....that's really all i know about it. I don't know much about computers in the first place and was wondering if Apple stores or Reseller stores will upgrade for you. I have no knowledge or experience in the matter. I just want a bigger harddrive with more ram and a dvd rom maybe.....anyone know of a place that will do this or should i just learn to do it myself? if that's the case, anyone know of a good guide that says what i will need and how to do it? thanks!