Hi, I just had a hard drive die in my old 20" G5 iMac 2.0GHz PPC (Pre iSight) and I've just installed another 250Gb SATA drive and booted to the install disc. The install is now looking for the destination volume to install OSX but nothing is showing up. I presume I have to format the drive first. I'm very familiar with that procedure on a PC but in all my years of using macs I've never had to do it! If anyone could shed some light on it for me it would be greatly appreciated. Thanks in advance, Rob.