Since I started DMing Swords & Wizardry (with Majestic Wilderlands) I been collecting random tables like mad. To make them easier for me to use I been coding them up for NBOS's Inspiration Pro. While Tablesmith is the grand daddy of this type of program I find Inspiration Pro far more flexible to code for.
Among the tables I created I have two I can release now. The first allows you to pick a Dungeon Level and it will roll a random encounter. The second will roll up a random spell book. You can download them both from here. Just unzip and copy into the Generators folder of Inspiration Pro. I keep them in a sub folder called S&W.