Cedar,
Several of those places around here carry them. I'm partial to the Field's store downtown, though. Around the corner from the jeans they have a pretty good designer section with the occasional 60%+ off sale. I've found some great deals there.
Jeans rarely go on sale other than maybe storewide sales. I'm a big fan of Seven--super comfy. I don't think the "label" is all that important though--it's really the overall look of these types of jeans that set them apart. The nice thing is that there are decent knock offs of the overall look for half the price or less. Names like Mavi and Lucky come to mind. Some of the other high priced brands l like are
Paper Denim & Cloth and (if you want to really push the envelope) Cavalli.
Neiman's also has a good selection, but I tend to feel I am getting ripped off there. (My own mental thing--can't imagine the jeans prices are much different. I just never find any GREAT deals there).
Hope this helps. Probably about three paragraphs more than I ever thought I would find myself commenting on jeans!