Must have mobile ring tones

If you listed to my show yesterday, you heard me play the ring tones and alerts I use on my Treo 800w and Motrola Q 9. I am always looking for good ring / text alert tones, so I was interested when Maximum PC posted their 20 Must-Have Geek Ringtones and Text Message Alerts (And 10 to Avoid!) article...complete with links to media files for download.
My personal criteria for a mobile phone tone is that it must be quick, clean audio that contains no voice or music. Generally, a nice sound effect or what we used to call in radio an audio stab. Got any good ones I may have missed (yes, I already have the ones I have posted on my site.) 

Head over to Maximum PC and give their suggestions a listen...and tell me what you're using for ring tones (with links if you have them.)