I have also moved to PT 8 on OSX 10.5.5.
I still have OSX 10.4.10 and PT 7.4.2 as a safety net.
PT 8 is very good, and certainly worth the upgrade in my opinion. The extras alone are worth the cost. The new interface is also a big welcome, as are the new graphics.
However, here are a few things that are not good, although they reside with 3rd party companies and not Digidesign.
- EZ Drummer loads and plays, albeit with a few quirks. Nashville & Percussion modules do not load their samples. You get their MIDI loops, but no sounds. I have uninstalled the said modules and then re-installed to no avail. The Mixer and MIDI loops windows do not open either, which makes the software 90% unuseable....
- IK Multimedia Amplitube 2 works fine until you access the Tuner and switch it on. Pro Tools freezes and the computer has to be re-started.
- WaveArts 5.3 works, albeit the Panaroma plug-in is not loaded at PT start-up. You get a message to dump it in the Plugins (Unused) folder.
That's it so far. I am in the studio again shortly to put PT 8 more through its paces. If this is interesting for you all, I can gladly continue to update this info.

