Buck...Give the Head IM 72 and the IM 77 a demo. I owned and skied the 75's, 77's, and now moved up to the 82's as my 2nd quivver ski. I'm 5'81/2 and 155lbs.
I skied with an instructor at Aspen who used his IM 72 for his every day ski and he loves the bumps, powder and crud.
He's about your weight but a bit shorter.
Gary