Alarm monitor for tcp/ip (ping and port test), disk (file size change, file exists, number of files in folder) and system issues (execute unix command). You can add multiple alarms with mail alerts, scheduling options and commands to do (launch app, document,URL or unix command) when the alarm activates.
ANONYMOUS Good little app with the ever-cool e-mail alert (for all us system admins out there). VERY easy to set up, and stable on OS X. I dont think its work the $20 however, most of whats done here can be done with a few scripts. BUT, if you dont like scripts, and enjoy a good UI, this app is for you. (Version 1.5)