Crassula ovata is probably the most common houseplant of all the succulents. It's also known as Friendship Tree. I've heard people call it Money Tree but that plant is actually Pachira aquatica.
Jades have rich green leaves and are great for creating an indoor bonzai. I got mine from a friend whose plant is over four feet tall. Her crassula has flowered beautifully with white star like flowers.
Jades are incredibly easy to propagate. Just take a leaf off, let it dry, and then plant in damp soil. It won't be long before it will root.