Hi, I found the following hard disk in the Apple store: Iomega MiniMax 250GB + Built in FireWire/USB Hub My situation: I have an iMac Core 2 Duo (2.16 GHz, 500 GB, 2 GB) and an iMac G5 (1.6 GHz, 160 GB, 1 GB). The iMac Core is my main machine. My iMac has three USB ports, one used by keyboard/mouse. That leaves two available ports. I have an external hard disk, usually powered down and disconnected. I also have a HP PDA and a camera with their respective cables connected to the remaining two USB ports. I do not want to replace the cables constantly. I am now planning to buy an iPod, which requires an USB port. So I was considering buying a USB hub, preferably unpowered. Then I found the afore-mentioned hard disk, which has hub and three USB ports built-in. I figure I can connect the hard disk (which obviously needs power) to one of the USB ports, leaving four ports available (1 always, 3 when the hard disk is switched on). Does that sound like a smart solution? And what's the best combination for the devices? The PDA has its own power cable, so perhaps the PDA should be connected to the hard disk hub (and I could only sync it when the hard disk is powered on). The camera is rarely connected and I merely don't wish to disconnect the cable for practical reasons. Thus I figure it could use the second hard disk hub port (and would only sync with iPhoto when the hard disk is switched on). The second USB hard disk can use the third hard disk hub port, as it is rarely powered on and will certainly never be needed INSTEAD of the new hard disk, which will more or less replace it. And the last available USB port in the computer could be for the iPod, which I understand recharges via USB. Any ideas?