Remote Relays
I’ve always loved working with 12V and I’ve used some remote control 12V stuff in the past. Here’s a couple of cool relays…that are pretty cheap.
Two remotes for 1 relay, $16.95.
1 remote, 4 relays momentary action $23.67.
GSM activated 7 relays $145.99.
You send an SMS message and it reboots devices. You should be able to get a prepaid SIM card and rock this for $20 a year.
12 relays/8 analog inputs/8 digital inputs – web controlled $132.
denkovi.com has crazy prices on cool products. All of their web controlled devices have analog/digital inputs as well as snmp control.
for remote control via web you can build it self with Arduino Ethernet Shield
http://arduino.cc/en/Main/ArduinoEthernetShield
sample code for Remote Control Arduino Ethernet via web page
http://community.pachube.com/node/112