MP3 CD's on my computer at night?

I'd like to play MP3 CD's on my computer at night, but I want my computer to act as a clock radio and shut off either after a certain amount of time, or after a certain number of tracks played. Anyone know how to make this happen? By neorogGo to yahoo downloads and click on yahoo widgets and get the sleep timer widget. It's free software. I use it all the time and it's real cool.

right click on the desktop > properties>screen saver>power and set system standby
Set your player to play certain number of tracks and set your power scheme to shut, standby or hibernate you system after a specified time.
You can "right click your mouse" on the desktop and left click "properties",then left click "screensaver" this option and left click "power and set system standby"to set when do you want to shut down your computer.I hope it's useful.Good luck.