PERL navigating directories. How do I do it

I am trying to write a Perl script that lists all the .pm files within c:\perl on a WinXP system. I have Strawberry Perl installed. I know that I can perform the action I want with shell script commands but I just want to perform it with Perl. I have written a Perl script that opens the pwd and lists the files but I haven't figured out how to start from a base directory and navigate that complex directory returning searched for file names.

Thanks in advance;

Sherman

---------- Post updated at 12:49 PM ---------- Previous update was at 11:28 AM ----------

I think I found the answer in the Perl for System Administration book under Walking or Trans versing the File System. If this is not it then please let me know