Power Scheduling in Leopard

[mmntech]

I set up my old iBook as a media server but I don't want it running 24/7. I just want it to be on when I'm most likely to be using it. I set up a power schedule to have it turn on and turn off at specified times. Ideally I'd like to have it turn on at a different time during the week than on weekends. Say 5pm when I get home and noon on weekends, then have it shut down at midnight every day. OS X only seems to allow one power on schedule. Is there some way in OS X or is there a freeware app out there that would allow me to set up multiple power on schedules for different days?