I also only wear women's jeans for the past 5 years. My favorite style currently is from the Gap and they are called Long and Lean. They are a low-rise, slim-legged, flair bottomed style that just hug all the right places and make me feel femme even though I am not trying to pass. I have also worn Venezia jeans from Lane Bryant as well as Avenue jeans. I really like a little stretch in the jeans and am suprised that men's jeans haven't moved this way.
Also Gap.com has women's jeans in xtra-long (like 36 length). I am well over 6 feet tall and only need long. There shouldn't be any reason not to find long-enough women's jeans and pants.
Deedee