Unfortunately, I don't think you're going to find a lot of good MVC-based code yet in perl as most of the GUI toolkits don't have a strong MVC base (that's coming around, but it's not quite there yet). Most of these toolkits tend to be built around the global event loop, and while MVC can be written to fit that, it's typically not a perfect match.

If anything, a good Java book may be the best way to understand the MVC concept better, particularly one focused on Swing components.

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Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain
It's not what you know, but knowing how to find it if you don't know that's important