I am a road cyclist ( proud member of roadbikereview.com
) and I just decided to build a MTB myself because I miss offroading. I just finished building my latest road bike and so I have no problem putting any bike together. My problem however, is that my knowledge of MTB components is very little...if any at all. I got a very nice hardtail frame, but now my quest for components begin. I'd like this bike to be primarly for hardcore XC. I need help 
Derailleurs/Shifters/Brakes
How does SRAM X.9 compare to Shimano XT? Would you recommend it over Shimano?
Handlebar/Stem/Steatpost/Crankset
Would you recommend Race Face (Deus), Holzfeller, or FSA? Other?
Brakes
Would you go with cable or disk? Advantages?
Thanks
Derailleurs/Shifters/Brakes
How does SRAM X.9 compare to Shimano XT? Would you recommend it over Shimano?
Handlebar/Stem/Steatpost/Crankset
Would you recommend Race Face (Deus), Holzfeller, or FSA? Other?
Brakes
Would you go with cable or disk? Advantages?
Thanks