Hello fellow mac users, I have a Revision A iMac, and when I purchased it I opted for the teeny tiny 80GB hard drive. Now, I desire to get a much much larger one. I don't think I'll have a problem with installing it myself, if I do I work with Apple-certified technicians every day, so no harm there. I am looking for suggestions on what brand/model of drive I should get. 300GB is the size I'm shooting for. Seagate is my brand of choice, but I don't want to make a decision on a new hard drive for a proprietary and cramped computer without asking others first. Thanks for the help?