I own a company running 16 desktops (Minis and a couple MBPs) and two servers. Generally if it ain't broke I don't fix it, so a lot of our software hasn't been regularly updated - including our most critical application: FileMaker Pro. Most of my machines are running FM Pro 8. It dawned on me that if/when computers die, which they will do on occasion, I'm going to be screwed because all the new Macs will have Lion and won't run FM Pro 8. But if I put FM Pro 11 on the new machines they won't work with my FM Pro Server. So, very quickly I'm forced to upgrade an entire office's software and hardware at significant cost. So I jumped to it and ordered two refurbished 27" iMacs from the Apple Store after checking online AND on the phone that they'd still have Snow Leopard, not Lion. Sure enough, however, the CSR was wrong, they DO have Lion. I called AppleCare and asked for the ORIGINAL OS X install disks for the machines and was roundly denied - "These machines have Lion, you don't need a disk." So that sucked. I do have retail Snow Leopard 10.6.3 disks and licenses available. The iMacs will not boot from or install SN from these disks. I'm seeing a few different methods online that I'm going to try in order to get SN up and running on these machines, but this is my question: If these machines shipped with 10.6.6, as my research indicates, am I SOL with my 10.6.3 disks regardless? Do I need to find 10.6.6 install disks on the secondary market in order to even attempt the partition and/or target disk gambit? This may be a tiresome question and issue, thanks for any help.