The answer will depend on how much you absorbed from reading the Llama 2nd Ed. Do you feel as though you've grasped the majority of the concepts and syntax? If so, then move on to somewhat more challenging books. I'd recommend Effective Perl Programming.

If you feel like you still have a lot to learn from the Llama, then I'd stick with the 2nd Ed. since you already have it. It's a great book!

--Dave

Update: looks like tilly had some similar ideas...