Ah yeah Spinoza was the monist? and Leibniz didn't like this idea because it makes no room for free will? Yes Lebniz certainly does talk a lot about God, although from memory his God is more a 'philosopher's God', similar to the first un-caused cause, the thing that set the initial starting condition of all the universe, and then leaves it to take care of itself. A kind of God that i think makes most logical sense over the Judeo-Christian, or the traditional tri-omni version.
Hmmm.. might be a bit of writing to do. I might do the Life and Achievements quickly to get it started, maybe the Monadology, and then people can add or suggest as they like. It's not easy approaching Leibniz because he didn't really publish many fully-finished works.
Aye i'll do maths, physics, engineering, philosophy... one thing i like about him is how he was a bit of an all-round genius, and his mathematical concepts spill over into his philosophy and vice-versa.. Feel free to suggest or add more