The McKenzie River has been good for the guides and a few friends that have been fishing it weekly. Dry Droppers with Elk Hair Caddis and Parachute Adams have been good, and use a Chubby for the heavier nymphs you want to suspend. Posse Buggers, King Prince and TJ Hookers have been productive on the McKenzie. 
Euro Nymphs on a side drift technique will be one of your best options on most days, but it is a lot of fun to take a wild McKenzie Redside on a dry fly if you can!