I'm going to buy an HD this week. It needs to be: Minimum 500GB Fast Reliable Firewire and USB Interface (FW 800 if possible!) AirPort Disk compatible Time Machine compatible Quiet Relatively good cooling/fans Good quality support/warranty/guarantee Perfect for a Mac user I have shorlisted 3 models so far. Please tell me what you think and share any stories about your HD experiences and please, please suggest other HDs and alternatives. Thanks!