Maybe someone can think of a way to create automatic links to pages with titles differing just by the case of the first letter? E.g. it would be helpful to have link to "aa" from the article titled "Aa". I have had no success trying to accomplish something like that using the available means of mediawiki. That's by the way one of the reasons why not-yet-so-big Estonian wiktionary has not switched over to case-sensitivite first letters yet.
There could be use for a magic word similar to PAGENAMEE which would return the page title with spaces substituted by '+' characters.
Klaus