Timepiece is an alarm clock that runs on your desktop and includes a stopwatch and a countdown timer. All three timepieces can run simultaneously.
You can choose your own sound file to start playing at the set alarm time. The sound for the countdown timer is also customisable. The alarm clock has a snooze feature.
shuTi is a alarm clock for iTunes, with an alarm time and sleep time for each day of the week. Full of features it also allows you to open or close other programs with the alarm or sleep time(I was tired of those damn DVD menus that loop continuously)