Use JSP.

Now why would I say that you ask? For a few reasons of course:

• You sound like you know Perl a lot better than JSP, it's always good to learn new things, and to know your options well.
• You'll appreciate Perl so much more after this. I never knew how much I liked Perl before I had to learn Java.
• You asked this question at a Perl Monastery, not just a Perl discussion website, but a Monastery. Your blasphemy will not go unpunished. ;-)

Also, after you're done your project, see my thoughts regarding Sun here