>You can often pick up these at garage sales:
>http://en.wikipedia.org/wiki/Hardy_Boys
>
>This series is a lot of fun, I love to read these to my kids:
>http://www.randomhouse.com/kids/junieb/

That Junie B. Jones is a trip. One of the goals when creating a first person narrator is to give them a distinctive voice, and Junie B. sure has that. Recommendation seconded.

I read just about all the Hardy Boys books as a kid. Have not looked at any of them since they were updated to reflect more modern times -- no more chums and roadsters -- so I'm not sure what they're like now.