Lululemon has some new skirted leggings - I picked up a pair yesterday. Full length, black on black, and for the life of me , I cannot find them on their website, sorry.
They fit TTS, are really cute, and are definitely not for work, or for anything other than weekend, casual, going-for-groceries or sitting in the stands at a basketball game kind of look. I can't wait to wear mine with a big hi-low sweater and sneakers. They are also body-con, so not for the faint of heart in that regard. But hey, if you are working for that body, why not?
eta: they are sold to be worn with the skirt part pulled down for coverage, or rolled and folded up as an ultra high waist band for those who dance or do yoga in cropped bra tops.