34x36 Pants selection at Land's End continues to impress me.
Complete selection with many available in 36" inseam or even greater.
Website is also one of the easier ones to navigate. I am looking for 2013 Christmas special to kick in since I need a few more.
Eddie Bauer is another one to check out, with tall sizes as well, including sweats. Unlike LL Bean sweatpants (tall more like 34" inseam), Eddie Bauer tall sweatpants have run longer than the reported 33 1/2" inseam in my experience, I hope that this has not changed. If anyone buys these, please add a comment here to re-verify length for those that are considering them.