If your adventourous, get a Siemens LOGO 230RC off ebay like this
http://cgi.ebay.com/SIEMENS-LOGO-230...item2ea8dedc81
I have found them for like $50 before though. I use them for my lights, and ATO. They are basically a programable relay. the one in the link has 4 relays usable on 110/230V Simple block logic programing by the LCD r via toyr home computer and a Logo PC cable.