Let's see, a Giant AC.....

RockShox Pike U-Turn.
Azonic Outlaw wheels.
Race Face crank, stem, bar.
Avid discs (mech or hyd., your choice).
X.9 drivetrain.
ODI grips.

Build it yourself, until you just CAN'T; that point is different for everybody. Remember, most parts/components come with some sort of installation instructions, you may find some hint that will get you over a hurdle.