These are two quick maps I pulled together for my Moria campaign using Open Office Draw to lay them out. Note to my players: Don't be peeking!
They show the main upper halls, the lower deeps, the two gates into the Mines, a number of upper and lower natural cavern complexes, and Durin's Tower, with a few miscellaneous markers up too.
The first one is a top-down view of the main areas of Moria.
The second is a side view showing relative elevations.