@rhadamant Great guide, but you're wrong about landing near the equator. Polar locations are the best because planets/moons in KSP have no axial tilt. This means if you land close enough to a pole the sun will never set and your base can use solar panels and run full time without the need to carry batteries or worry about drills stopping overnight. You don't even need to worry about shade from local mountains/craters as the illumination check considers the planet to be an ideal sphere.
While it's true that it takes less delta-V to land at the equator, the prime candidates for mining (Minmus, Gilly, Bop, Pol) all have such low escape velocities and sidereal rotation velocities that the added cost is minimal.