In reply to wardyuk:
I'm 6'7" and usually need a 36" inseam.
I could never find the Mammut or Haglofs Long versions, and they were stupidly expensive. The Arcteryx ones are OK but still not long enough.
Two pairs I'm currently using, I've had the hem dropped on both and they are good:
Eddie Bauer Guide Pro pants 34w x 36l
Patagonia Guide pants in 34" waist
I also have a pair of Rab VapourRise pants and they are very long in XL.