In case you missed it, there is a wicket OS X exploit out there. It's the stuff other not-quite-so-good systems are made of mostly. Anyway, you want this tool that allows you to disassociate help:// links, disk:// links, and telnet:// links. The short of the exploit is that someone can run remote code on your computer. The non-technical ramifications are that if you click a link your Mac will do everything from mounting a remote .dmg file, running ANY command on your computer, and (related to that last point) DELETE any file you have permission to delete. Since many Mac users run as their "root" account, I'm sure you can guess where this is going. (Update:http://bronosky.com/pub/AppleScript.htm provides proof of concept test using the "disk usage" command. This is just an exploit demonstration site.) Scary shit. Very scary shit.
Speaking of things that are scary, I have to present my capstone in the morning. I'm nervous, but coping as only I know how: reading everyone's blogs.
In response to "MacOSX Exploit kept me from sleeping":
Exploit patched as of 5/21/04.