Have a MacPro with Lion pre-installed on it. Also have a mid 2010 Mac Mini with SL 10.6.7. Looking to purchase ProTools 10 HD Native which comes with a pcie interface card. The card as it comes from Avid has firmware version 1.00. ProTools when it installs wants to update the card's firmware to 1.03. The problem is that the update won't happen on Lion; must be 10.6.7. This is an issue that Avid knows about. What I'd like to do is to hook the two Mac together via FW and boot into target mode on the MacPro. From what I've read of target disk mode only relates to seeing the machine as a fw drive. Nothing mentioned of anything in the pcie slots being accessible in this mode. I just want to be sure of what I'm doing so I don't screw up two working Macs. I've never done target mode. To sum up - I need to boot the MacPro (which has Lion pre-installed) in SL so I can update the firmware on the Avid interface card. If I'm offbase in my thinking please correct me.