A weird one here, as my old Rockerhopper Comp 2011 was one of the very few in the 19" frame size to suffer from a slight manufacturing defect which resulted in a horrible vibration and wobble in the frame and forks, so Specialized kindly swapped my Comp 2011 frame for a brand new Expert 2012 frame.
Rockhopper Expert M4 Frame
RockShox Recon Silver SL Forks 100mm
Shimano Deore Front
Shimano SLX Rear
Avid Juicy 3 160mm Front & Rear
DT Swiss 445 Rims
The Captain Control 26"x2.0
Shimano Deore Shifters