Autoruns - See what programs are configured to startup automatically when your system boots and you login.
LaunchControl - The launchd GUI
Startup Delayer - Startup Delayer gives you the power to optimize your Startup Process by delaying applications from starting up as soon as you log into your computer. By delaying the applications during start up, your computer becomes usable a lot faster.
Lingon - [The Lingon open-source project on SourceForge.net (...
MSConfig - Describes how to use the System Configuration utility (MsConfig.exe) to troubleshoot errors that may prevent Windows Vista from starting correctly.
Autorun Organizer - Free startup manager with delay option.