Jeff Chadd - Majestic Mountain Outdoors.
http://www.majesticmountainoutfitters.com/I hunted with him in 2008 and shot a nice sheep and I know several other guys who have hunted with him and have done well.
Some rough country but extremely beautiful, I saw several legal rams.
There are a couple other good outfitters in that area that I'm sure someone else will chime in on.