LCD Monitor Power Consumption - Which of the LCD Monitors Consume Less Than 0.5 Watts on Standby?

I'm trying to pick an energy efficient monitor in the 19-24" range.

Guest

* 19" Lenovo ThinkVision 1940p (0.4 Watts on standby)
* 22" ViewSonic vx2265wm (0.45 Watts on standby)
* 22" Dell G2210 (0.48 Watts on standby)
* 24" Dell G2410 (0.48 Watts on standby)

For energy efficiency, look at annual power consumption cost (with respect to monitor size) and not just the standby wattage.

While the 19" Lenovo LCD has the lowest annual energy cost, the 22" Dell LCD is overall a better buy.

Harry