power consumpson of Macs

[Scott Howell]

Folks, I've been searching for some information regarding power usage  
of Macs. I was reading an article that stated that an Imac would use  
something like 60 to 97 watts while operating. Now I don't want to  
start a big war over whether its good to shutdown your machines or  
not, but there's a good chance our electric rates are going to go up  
quite a lot do to the cap expiring. So of course I'm interested in  
saving as much as possible which is good for my account and I'm sure  
helps the environment. I am curious if I'll really save anything  
putting the machines to sleep while I'm at work, yeah I could turn  
them off, ut sleep seems a good compromise.
If these machines really don't use that much power, it might not make  
sense to turn them off and I'm sure its not going to extend their  
lives significantly so that doesn't seem to be a good arguement for  
putting them to sleep. The article I read said it would, but that was  
from one source and I figure by the time I'd wear out the drive etc.  
the thing will be so old I'll probably have or will purchase a new  
one in any case.
Of course I'm looking at this from a purely economic perspective. Any  
info appreciated.
tnx

Scott