I've heard people having problems w/ perl 5.6.0 and mod_perl so I've shyed away from it for now.
It's tricky to install your own perl w/o horking debian. I don't like how
they use their packaging system to duplicate the functionality of CPAN,
but oh well. I do have a perl 5.6.0 installation into a home directory
of a user account that I use for testing out weird stuff, though.