Hi I'm just about to upgrade to a new iMac with thunderbolt etc, and an additional display. I am currently using a PPC G5 2.7gHz (2005) which has DVI display ports. It's running 10.4.11 due to a combination of Logic and Protools software and hardware requirements. I can't update the OS or it will mess up Logic and Protools. I need to continue using the G5 occasionally for older projects. I would like to be able to connect its DVI ports to my new iMac to use as a display for those occasions. As I understand it, I'll need something like an Atlona AT-DP200 DVI to Minidisplay port converter. Can I then plug this into the iMac's thunderbolt port and use it in target display mode to display the G5? Will it work with my elderly OS and do I need any other adaptors (ie minidisplayport to thunderbolt?) All advice gratefully received!