A friend of mine just sent this to me:
"I don't know if you've seen references to creating your own .cshrc file anywhere. I've been playing with it a bit. The way to do it is to edit the /etc/csh.cshrc file. If you do this one, the aliases you add are usable by all users - including root and sudo-ed uses. I added this:
alias bbopen "open -a '/Applications/Text/BBEdit 6.1/BBEdit 6.1 for OS X'"which makes the command "bbopen FILENAME" (without quotes, FILENAME is the name of the file) open any file you want. Note that my path to BBEdit may not be yours."
Mac OS X Hints
http://hints.macworld.com/article.php?story=20011014192214538