I have a set of OEM headlights from a 98 M3 just sitting in the garage. They have halogen bulbs in the low beams. They have the typical discoloration, but could be buffed out with the headlight kit sold at most auto parts stores.

40 dollars OBO.

http://i76.photobucket.com/albums/j40/turbosporttsi/000_0084.jpg
http://i76.photobucket.com/albums/j40/turbosporttsi/000_0083.jpg

Bumpage.