Hi Dan,
I'm calculating my future system's total power consumption to purchase an AC conditioner with appropriate amperage load/supply.
How much current in Watts or Amps (@220-240VAC) would the LS36.5 consume in full operations?  And the same for the preamp + PS combo, in case I decided to upgrade or purchase both units?  
I have no knowledge at all about tubes but noticed they can be changed to alter sound character.  Should I spare some extra current draw on the LS36.5 & PS for different kind of tubes?  Please advise.
Best wishes for your upcoming RMAF 2008 show.
Regards,
Klao