Not sure if this feature was in OS9 and under or ever made it to X or was in 9, or what.. but it used to be that if a user started a filename with a '!', then it would be listed first in Finder windows sorting the files alphabetically.. and if the filename started it with a '&' it would be at the bottom of an alphabetical list in Finder windows...
the '!' still puts file first, but is there a symbol or non-english letter or something to start filenames with to send them to the bottom of a Finder Window list?