Reveil

Reveil is an application that allows you to schedule alarms. It has a simple interface so that you can focus on setting up your alarms.
With this program you will be able to set as many alarms as you want, set one-time alarms or daily alarms, add and messages that will be displayed when alarm rings.

It features numerous ringtones built-in, integration with iTunes library, wake up to any song in your library, and icon in menu bar for easy access to your alarms.