Right here on Team Estrogen there is an entire "specialty shop" for tall women! http://www.teamestrogen.com/product/...cialty_04.html
SusanO does a great job of keeping Team Estrogen stocked with tall clothing that is truly TALL!
(Several tights in that link, by the way. I linked the whole shop, and not just the tights, because if you are tall like me you probably also search desperately for torsos and sleeves that are long enough!)