I'm curious: This has happened with 2 powerbooks now, each with a clean install. My startup time under 10.3.3 is down to 45 seconds, but after a few weeks of use it goes back up to 2-3 minutes or more, but if I delete the famous com.apple.sidebarlists.plist in user/prefernces, I get back down to 45 seconds. Does this work for anyone else?