I am new to this field, and this forum, so a newbie in all senses of the word. I am a Software Developer looking into this area, initially to build a system that would work in my home.

I want to know how I can wire up things like door contacts, and other wonderful security, home automated type things, but interface them with my pc, either wirelessly or wired. Ideally, i am not bothered about the software as i want to do this myself, but i would like something like a bridge which would receive signals from these devices, and then identify those signals to my PC so i can manage the results from there.

A starting point, or any help at all would be fantastic, not sure of the technologies involved so really am starting from scratch.