This plugin will allow you to preset a wakeup time for winamp to do certain task, like start playing an mp3, and or stream an URL at a specified time of the day, now has a snooze option.
now with AM and PM options
Allows for you to set a certain time (would be nice for AM and PM controls) for Winamp to start playing. There's a nice feature for boosting volume on playback too. You can choose a file or stream to wake up to.