My father-in-law has a PowerMac 6500/250 that he still enjoys using and has no desire to replace, but the 8.5.1 (yes, I know) errors are starting to annoy him. I went to upgrade him to )S 9.2.2, but apparently this unit can only be upgraded to 9.1, is there any way around this? I really don't want to have to purchase a copy of 9.1 when I have 9.2.2 already. Also, pardon my ignorance, but does this machine qualify as a PCI based PowerMac? Just asking, thanks.