I hope I can find one. We used to have around a dozen of them, but I too did a general cobweb and e-waste clean out so I could get to my pool table and wood working tools a few years ago. I'm pretty sure I still have a OSX.5 Leopard somewhere in the garage of my Stockton house. Finding a generic OSX.4 Tiger install disk is going to be more problematic.
What speed processor is in your Mac? That determines what you can get away with. Leopard is far superior to Tiger. Some still claim it was the best version ever.
Hmmm. I still have my old original 2003 PowerMac G5 Tower that my ex-wife was using until the power supply decided to let the magic blue smoke out last year. I got her a brand new Intel Mac mini as a replacement. It's still sitting in the garage gathering dust. The drives in that G5 are still good, I think. I can't recall if it was running Tiger or Leopard when it died. All it needs is a new power supply which I've never gotten around to buying. I always kept a disk image of the current OSX on one of the drives. That's another possibility. Possibilities.
But, that bank robbery with the running gun battle and the dead hostage used as a human shield just shocks me with such disregard for life and it's not Stockton's fault but it's so close we get basically local coverage and I'm still just amazed at something that looks like a 1930s mob movie and let's not forget the murder of innocent air travelers, I hope none of you family was impacted in that shootout nightmare. How many cop cars were shot? They said houses and cars had bullet holes, insane, I'm amazed more people didn't die just being in the wrong place at the wrong time.
Back to something that is not depressing is that I didn't have a chance to pick the Mac up and I don't know what it has as far as speed or memory. The Mac I had used regular memory and being a pack rat I've probably got the correct memory to fill this one up to whatever it can take.
Is the G5 tower the one that look like it has a brushed aluminum case? Those things are nice. Don't they take regular ATX power supplies or do you have to order one from Apple? Are you looking to sell it? Will it run the VM software that allows you to boot other O/S's? It's still a PPC CPU though isn't it?