Look up X10 modules!
My post from another thread:
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Well, I tried the $20 3-pack remotes from Lowes that Wade Lanham has.... Didn't do the job for me, they seem finicky and very low quality (1 broke just plugging it in, another stopped working). May have been a different Chinese brand than what Wade got as his seem to work nicely.
So, as SpaceWar mentioned, X10 modules seem to be the better choice (each appliance module handles up to 15A!).
Looking around, they can be expensive, but I found a good seller on Ebay that has the appliance modules for $6 each (NEW) with free shipping.
I just got my order in and set them up, they work great!!
I ordered 3 different controller types, 1 looks like a wall switch and does 3 different modules, 1 is a remote for up to 16 modules (I will only use 8), and the last is a plug in controller which I didn't like and have already sold. I will not likely use the wall switch plates either as I really like the remote after I got done customizing it.
Some free advertisement for the Ebay seller, but he seemed very easy to work with and the products are solid quality and ship fast.
http://stores.ebay.com/x10automation