Most of the bushings are hard (or impossible) to find, so going back to new OEM is as good as it gets. If you just want a great like-new suspension, you can just get new front control arms (with bushings/balljoints) and OEM struts. However, if you want to one-up stock, but keep a very smooth, comfortable ride, the BAT kit ($600 from BAT) plus 21mm rear swaybar and bushings ($125(?) from BAT), new control arms ($100 total from Bill), and a fresh alignment will give you crisp, smooth handling. The usual response is that it feels even more BMW-like, or how it "shoulda been" from the factory. There are a lot of other options, but a search will turn up tons of info. Odds are you'll settle on one of the builds I listed, as they are the most popular for people who want what you do. And about the rear swaybar: the BAT will be fine. The Aussie is hard to find and would probably not give you any noticeable benifit for your setup.
