Apparently the Sony Playstation 3 consumes up to 380 watts of power according to a review in the current T3 technology magazine. I can't help wondering how big the power supply unit is as the XBox 360's one is huge - it's rated @ 1/2 the power consumption of the PS3 and it's it's PSU is bigger than an English house brick!
These things matter. Get yourself a "Plug-In Mains Power & Energy Monitor". I think the PS3 has a rather heavy internal power supply.
Our UK '360 clocks in at 174 watts peak, 147 watts typical (~1 Watt when in standby). By contrast, the Sony Bravia 40" LCD is 153 Watts (also 1 watt in standby)
By contrast, an 18 month old dual Xeon 3.2 with an X800XL was 185 watts and an Iiyama 22" CRT was 107 Watts. A cheapo (Dabs value?) 19" LCD flat screen was 76 watts.
Apparently plasma TVs are also real killers for electricity (compared with LCD)
Ed> Thanks for your input. I've been looking into LCD versus Plasma TVs and have found exactly what you say - Plasma uses 50 - 100W more than LCD.
Indeed, we actually saw a noticeable difference in consumption swapping from a 43" plasma UP to 50" LCD...