Any Remote Start Gurus Out There?

[WPBGUY]

I would like to add one. One that intigrates with the factory alarm. I saw on that you can just hold down the unlock button and it will start. Also there is some other unit that you need for the passlock system. I have been looking, but not sure exactly what I need. Anyone installed one, with luck?
Also I would like to have a window close feature, upon arming the system.