question on sleep mode and cron

[Scott Howell]

Folks, I asked a while back about having the Mac asleep and wakeup  
for a cron job. I understand this really doesn't work, but yet there  
are programs that can wake the Mac up and run. Is it at all possible  
to have a sleeping Mac wakeup and run something in a cron job by  
using some program? In other words is there a way to use some  
scheduling program that would wake the Mac and allow cron jobs to run  
at their proper time?
I think this would be a real enhancement to the Mac allowing crond or  
whatever the cron daemon is wake  up the box to run jobs and  
maitanance activities. This makes sense and I'm really surprised that  
Apple hasn't considered this unless the daemon they use is not one  
they wrote themselves so isn't capable of handling such activities.
Any thoughts appreciated. If programs can wake the Mac, then I can't  
imagine why cron can't be made to do this.

Scott