LaunchControl is a fully-featured launchd GUI allowing you to create, manage and debug system- and user services on your Mac.
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.
Autoruns - See what programs are configured to startup automatically when your system boots and you login.
MSConfig - Describes how to use the System Configuration utility (MsConfig.exe) to troubleshoot errors that may prevent Windows Vista from starting correctly.
Lingon - [The Lingon open-source project on SourceForge.net (...
Argente StartUp Manager - Argente - StartUp Manager is a utility that displays all the applications that start with Windows.
FCorp KickStart - Windows Startup and Services Manager