Here are three videos that I found off the internet that will help you a lot.
The first one comes from the DIY network. He's going to show you how you can cut stone with a claw hammer, a $9 chisel, and an old piece of angle iron.
This next video will show you how to utilize all of the stone in your pallet. He makes a nice little pathway in the video and he'll show you how to cut thick stone and make some curves on the end.
This last video will demonstrate cutting with a diamond blade saw. It creates a lot of dust and will give you an idea what you're up against when using a saw.
By watching these three videos, you'll be able to cut some good looking stone.