I'm a bit ahead of myself, but my wife has approved buying my college graduation present (yeah, at 37 we still get nice schwagg for doing what we should have done at 21 - so hush

)
Camber Pro 29er
vs.
Epic Comp 29er
Where's the key differences and why? Only thing that stands out is the M4 vs. M5 framesets?
X9 and XTR are comparable. Both have X7 on the front.
Help, please?