Push button engine start

How's it going?
I'm not big on messing with the engine in my civic as it has alot of miles on it and i want it to last for a while, but i love messing with stereo electronics gizmos and such.
i'm wondering if anyone knows of a good DIY for installing a push button engine start, or if anyone has done this and would be able to tell me a little bit about how much work it is... etc

thanks
Sean