One of the 80 GB internal drives in my PowerMac Dual G4 500 Mhz (Gigabit Ethernet) died and I am looking for a replacement. I have always owned all-in-one Macs and so I am confused by the terminology. Can anyone give my a recommendation for a drive they like that will work in my machine? If the price is right, I may replace both internal drives just to be safe (I'd rather increase my internal storage than take a step backwards). Thanks in advance for your help, which will be greatly appreciated!