The best thing would be to use a package that uses the packages you need.

I'm likely to list all the files explicitly if they are all freestanding packages. I'd probably do this with my editor or code generator if practical.

You also could:

my @reqs = ( "Baz.pm", "Rot.pm" );  
foreach (@reqs) { require; }
[download]

But I think you want convenience not finer control.

Update: Mispelling, grammar improvement.