The Itunes .pkg's were the culprit. Removing them solved the problem.
I should have done a forum search on permissions and not disk utility as I did, which would have turned up the referenced thread for me.
At least all those words are now contained in this thread. Thanks for the help.
I also found this info on
Updating The Prebinding. Scroll about halfway down the page. Seems to have speeded up the booting of and my operation of CS2 which I just installed a short time ago.