I am 18 withe a slender 6'4" frame at about 190 pounds. I have been riding about a year on a trek 4500, that is mostly stock. I am going to invest about $1400 in a new bike but am thinking of sticking to a hardtail mainly because of the nicer components i will get. I am seriously considering the Specialized Stumpjumper Hardtail with disc brakes. I mostly prefer to ride downhill and i am thinking about getting more agressive and start riding the park and getting some air. What bike would you guys recomend? Any help is appriciated. Thanks. Andrew.