There are a variety of SNMP modules available for perl. I use the same combo you do, and it has full access to the ucd-snmp library calls. Given the motivation, you can easily rewrite all the utilities that cam with the SNMP library in perl.

I have written a script much like what you, ybic. Message me with an email address and I will send you some of the interesting snippets where I gather the same kind of data. Not that my code is anything marvelous, but it sometimes helps seeing what other people have done. Sorry, I am concerned that certain NDAs and copyrights prevent me from slamming the entire thing into the Catacombs.

mikfire