bluntman,

I just bought a bike on Sunday, Specialized Crossroads. Its a hybrid.

But I also tried out Specialized Expedition Sport, and fell in love with it.... I didn't get it because I wanted thinner tires and bigger wheels, but for jumping off the curbs it would be perfect. Its not a mountain bike, its a hybrid, but with smaller and thicker wheels.
I don't know your price range but I saw it for $330. Check it out
http://www.specialized.com/SBCBkMode...omfort&my=2003