Hello, I need to upgrade my late 2006 iMac from OS 10.4.11 to 10.6 in order to make a printer driver work. I have a disk for Snow Leopard, but when I tried to install it, I got a message that I need to have Leopard installed first in order to do it. The problem now is that Apple doesn't have Leopard available and I'm not sure where to look for a copy. Wait, not true, I saw one on Amazon for more than $150. Cheaper on ebay, but heavy competition. Now, I understand that Apple would really, really like for me to buy a new computer, but I can't do it right now. What can I do?