Thanks for the feedback. FYI, O'Reilly has a Mason book in the works, and SAMS has a mod_perl book coming out that will include some info on templating tools.
UPDATE: I've just looked at Text::Templar, and I don't see anything there that isn't done (better) by Template Toolkit. Similarly, PAS seems to be a less mature clone of Apache::ASP/Mason/Embperl, and contrary to what the authors imply, I don't see it having any real advantages over those systems. In my opinion, these people would be better off contributing their time to one of the more mature projects rather than duplicating them. Even if there is something that isn't covered by existing systems, adding it would probably be easier than reinventing this entire wheel.
Don't get me wrong: writing a templating system is fun, and everyone should try it. We just don't need all of them on CPAN and Sourceforge.