What Rules are being used in the new OD&D campaign?

Just briefly, I thought I would mention the Rules that we are using in the new OD&D Campaign. We are using the original three booklets Men & Magic, Monsters & Treasure and the Underworld & Wilderness Adventures. That's it, nothing else except the house rules that I add as we go. So all weapons do 1d6 and the ref rolls up the characters for the players.