Dragon Warriors is quite possibly what D&D would have been had D&D been created in England. Thanks to Magnum opus and Mongoose Publishing it's back in print after a long hiatus.
http://www.mongoosepublishing.com/home/detail.php?qsID=1609#
The new edition is a very nice book with a great retro feel. The classes are similar to those of D&D with a few cool twists. The rules are simple and easy to understand and best of all, it's a good system for running dungeons!
I think I may need to add this one to my "List of Acceptable RPGs".
