Despite what everyone shit-talks about them, I have had a set on my car for a year now and have had no problems whatsoever with them. The ride quality is just as good, if not better than what my car was before with the stock, 14 year old suspension. I haven't had one snap, break or spontaniously combust yet and for what I wanted them for, an adjustable ride height for street driving, they have been perfect.
Bad mouth them all you want, my car looks great on them and I have had no problems yet and my car can be just as low, if not lower than any other e36.
As to where to get them, I know you can order them online and have them shipped. Not sure about any local dealer. I bought mine from a member on the board who ordered them and then decided to go in a different direction.