So I'm sitting here waiting to get a new iMac after the Leopard release when I realized that this was purely stupid on my part. I have a mixed home network with a MacBook Pro, iMac G5 and a mini with a few PC's, too. I was planning on buying the Mac OX 10.5 family pack when it came out to update all my macs. Since that covers five machines, I can by my new Mac now and just update them all to Leopard with the family pack when it ships (Oct 26, I hope!). Stupid me!