first of all, dont listen to the whole "omg get teh konaz!@!" (unless they speak of a shonky, their pretty legit, but most other kona bikes built for jumping are shit
speacialized makes a solid jump build, i think the new p3 goes for 1800 and is like 28 lbs stock
or you could go from the frame up and build your own bike, in this case black market and doberman and such bikes arent a bad sale atall( iu have an 08 riot and love it to death) ive had previous expirirences with norco, theyre more liek mediocre(not too sure about the 09s, maybe tey stepped up their game)
but for simplicity sake id look at the new p3