w210 Front Suspension Collapse

[420SEL]

Well, it happened. Fortunately I was stopped at a stop light and not flying down the highway at the time. The front of the car just dropped like I had driven into a huge pothole. The front spring on the drivers side was lying on the ground under the car and the tire is now holding the front end up.
Got towed to the local dealer which was only about 3 miles away. I'll have to wait until the open on Monday to see what they say but I was wondering if anyone had any experience with this who might let me know what to expect re repairs, what's involved, cost (rough estimates), etc.

Thanks.