So-long Photoshop CS4
I haven’t used Photoshop CS4 for a month or so now.
In spite of some issues with CS5 (some of which I know Adobe is fixing), my work frequently involves multi-gigabyte files, so CS5 offers a huge performance advantage, once warmed up, since it can use as much memory as it needs. Plugins are still an issue for some users, but not for me.

Removing Photoshop CS4 from the Dock