Autoruns - See what programs are configured to startup automatically when your system boots and you login.
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.
HiBit Startup Manager - Manage the List of All Applications that are Loaded Automatically When Windows Starts Up.
MSConfig - Describes how to use the System Configuration utility (MsConfig.exe) to troubleshoot errors that may prevent Windows Vista from starting correctly.
DelayedLauncher - OS & Utilities
LaunchControl - The launchd GUI