I am running Plesk 8.6 with about 150 domains on Ubuntu 6.06 LT. All is working well. However, I need to move to a new server both for storage space and to upgrade CPUs. I would like to upgrade to the current version 9 of Plesk as well in the process. I also plan to move to a current version of Ubuntu server. What is the best route to do this? Do I upgrade 8.6 on the old server first, then backup and restore all to a new server? Or is it better to install the current version of Plesk on a new server and use the Migration Manager to move everything over? I would love to hear from anyone who has done a similar upgrade lately and has suggestions, warnings and encouragement. Many thanks.