Added alias for Growl notification, can be used like the following to notify once the long running process (make in this example) is done:

$ make install ; grnot

aliases/available/osx.aliases.bash

@@ -18,3 +18,5 @@ alias hex='open -a "Hex Fiend"'
 if [ -s /usr/bin/firefox ] ; then
   unalias firefox
 fi
+
+alias grnot='growlnotify -s -t Terminal -m "Done"'