It's always exciting to find story sources. I say it all the time, people learn language through storytelling. We learn vocabulary through reading and hearing words in context, not by studying the dictionary. We learn what "sounds right" (the key to fluency) by hearing it over and over and over again, not by doing drills.
So I'm pleased to put in a plug for Cody's Cuentos. They're available in audio, with transcripts, and they're adorable! The blog in general is too cute. If you're learning Spanish, you've got to visit this site.