Grasshopper Green

My son is in third grade and much to my delight, he has really developed a love for reading this year. He and I frequently read together in the evenings and I want to keep this activity up, so I need some help with book recommendations. I loved reading at his age, but I don't think he'd enjoy most of the books I read as a child. I did introduce him to Indian in the Cupboard, which he loved, and he'll be getting the next two books for Christmas.

So far, he's read the entire Diary of a Wimpy Kid series, Charlottes Web, and The Indian in the Cupboard this year. He started the first Harry Potter, but I think it's a little too advanced and we'll probably wait another year or two before starting them again. I also tried a Hardy Boys book, he read about 1/4 of it and set it down. I think I'm going to try Roald Dahl soon, too.

Basically, I'm interested in any books you enjoyed when you were young or that your boys have enjoyed. He reads above grade level so books aimed toward 8-11 year olds are all probably good. I'm not particularly knowledgable about recent books aimed towards his age group, this is really where I'm hoping you all can help me out. Any suggestions?

__________________
"They say that patriotism is the last refuge to which a scoundrel clings; steal a little and they throw you in jail, steal a lot and they make you king"

Formerly Medusa