Great response, thanks very much. The mylex site has the radiator for $577, which is still a lot but WAY better than my dealer. And yes, you nailed it on the head regarding brakes - my advisor did suggest that the rotors be turned, which, coming from the BMW camp, is highly frowned upon. And, as you mentioned, rotors just aren't that expensive to buy...
Will check the price of filters, too, and I expect them to be less as well.
One more - do folks tend to stick with factory pads or go with something else? The stock pads actually are pretty good, dust-wise, so no real complaints, but just wondering.
Thanks again.