I'm 6'5" tall and normally wear 33w 34l pants.  In these I had to size up to 34/34 as there was no 33" waist option.  The waist on these pants is nice in that it has an elasticized portion that will allow for a little give, so I'd strongly suggest sizing down an inch as opposed to sizing up an inch if you're in a similar scenario.  That said, the 34" waist fits my waist, but a belt is required if I want to carry any gear in my pockets, which is fine.

Okay, I'm a fairly thin, healthy person, and unfortunately, these pants seem not to be designed for my body type as I feel like I'm wandering around in a 90's hip hop video.  The pant leg is horribly wide, and makes my size 12 feet nearly disappear with all the extra material floating around down there.  My fear from a functional standpoint (I bought these for work) is that they're way too baggy and in turn, may get in the way while operating around patients.  It may just be the combination of my body type and the general sizing, but these things are like parachute pants on me, and while pretty hilarious, they're not great for what I'd hoped they'd work for.