I wear the Burton Field Pants in XL and they are huge on me. I'm 6'2 230 about 36 inch waist and these things fall off me even with the adjustable waist cinched up a bit. I'm not sure if they make them in XXL and a quick web search didn't turn up anything. I know they have some at Trusnow.com cuz thats were I got mine from (actually it was SierraSnowboard but they got bought or something) anyhow.
I can also tell you that the Burton AK Gore Tex line of pants seems to run a bit on the small side. Tried on a pair of AK Stagger 2L in large and was surprised how snug.
Sessions and Volcom also makes some XXL size pants. Arc Teryx makes some sweet pants in XXL but they are fortune lol
You can also get the Burton Cargo Pant in XXL just about anywhere.
And whoa? What the hell are you squatting to get 32" thighs? Tanks LOL!!