Is anyone else having the problem with iTunes 8 where your iMac freezes completely (only the mouse will move but you can't click anything)? I started having this problem after upgrading to 10.5.5 and iTunes 8.0.1.
Apple support discussion related to this: http://discussions.apple.com/thread.jspa?messageID=8298236
Apple support discussion related to this: http://discussions.apple.com/thread.jspa?messageID=8298236