I have The Dungeon Dozen in print, and it's an awesome book book of random tables. In the "beat the threshold" level, Odyssey is excellent (especially for a disorganized ass like me) and I've heard good things abut Hamlet's Hit Points.
The Minotaur for Old-School Essentials
*Requirements:* Minimum STR 9, Minimum CON 9
*Prime Requisite:* STR and CON
*Hit Dice:* 1d10
*Maximum Level:* 8
*Armor:* Leather, including shield...