Well, time to talk about myself
We offer CGI/Perl as mod_perl, SSI with exec command (from anywhere in your site, for both CGIs and SSIs)
We have no problem installing needed perl modules either, if they are recognized to be stable and safe.
I beleive you should take a look at: http://services.can-host.com/?url=hosting
Of course, this is the company I work for, so I am not the best to talk about wich one is better or not, but I think we are doing good.
Good luck, I know how hard finding a host is
[Félix C.Courtemanche | Web Designer]
[Head Designer | Co-Admin]
[Can-Host Networks | http://can-host.com