I'm a big fan of Powderfinger. They've kind of evolved over the years from a sort of melodic post-grunge sound (Parables for Wooden Ears) through several more introspective stages (on Double Allergic, Internationalist and Odyssey #5) to a bluesy rock style on Vulture Street. Throughout, the songwriting is solid, catchy and intelligent. Worth checking out, but not for your average teeny-bopper, nu-metaller or other corporate sound seeker.
And if I want a quiet chuckle, I'll listen to Dream Theatre's 'Dance of Eternity'.