As far as I know, industrial automation companies like OMRON (or maybe Johnson
Controls, Honeywell and Yamatake also) are now offering cheap version of their
PLCs for under 10K. Target is mainly home automation. These cheap PLCs can be
programmed to control your house (like sprinkler valve) by programming it
through serial port (try minicom). 

If you do not have any experience in electronic design of these controllers, I
suggest that you do not attempt. These controllers are designed to meet tons of
regulated safety rules to make sure that in the event of accident (like
lighting strikes) they will fail without burning your house.

-rowel

--- Brian Baquiran <[EMAIL PROTECTED]> wrote:
> Are any PLUGgers into HA as well? 
> 
> I'm thinking of setting up my house for centralized automation,
> specifically, controlling appliances and stuff from my PC. While I can
> certainly wire up a couple of optoisolators and relays to the parallel
> port, I'm hoping there's a more professional (commercial) way of doing
> things. Will the X10 modules available in the US work here?
> 
> If there are no locally available control systems, I guess I'll just
> have to build my own.
> 
> Brian
> --
> "Rebooting does not make you smarter."
>               -- Mark Misani
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