I installed a trial version of Media 100 Suite on a suite that has FC on it. This particular suite is the fastest and most important suite at our company (any downtime is damaging). It's running OSX 10.4.11. Media 100 told me I need to be at 10.5.8 or higher. I'm always reluctant to upgrade my OSX version when FC is working well. As regards FC, will I regret upgrading to 10.5.8 or 10.6 in any way? Should I stay at 10.4.11 and find another computer to try the Media 100 trial? And if it's fine to upgrade, which do you recommend 10.5.8 or 10.6? Thank you.