I'm wiring my new place right now and will have a dedicated circuit for the computer. Is there any reason why I can't run a 230V circuit for the power supply since it (Antec SmartPower 2.0 350W) can be switched to 230V? Nevermind the plug configuration....easy fix. Just an FYI for folks on the computer all the time: Your watthour meter is measuring the higher of the current draw on L1 and L2. If you're plugged into 110V, you're still paying for 220V. Run anything off of 220V and you cut your power bill in half. A good reason to never buy a 110V window A/C unit!