Turning on the machine is not the problem.  I can do that through the bios.  I have tried WOL previously, but had no luck getting it to work.  It was on an advanced DHCP panel.  I think my hardware was not compatible, though I had the WOL wires attached to the card and the bios set to allow WOL.  In any event, I don't recall that it had scheduling ability.
My problem is turning it off.  I considered a cron job, but I've never worked with those before.  Where can I get a good primer on that?  Are scripts hard/long to write, or is is just a matter of a few simple lines of code?
Thanks again!