Landing A Big Fish

I'm courting a potential customer who's looking for high end monitors for an amazing 3D medical imaging application. He was referred to me by a long time customer, and I brought him a unit to test this morning. It performed perfectly, and I quoted him a price for 20 units and agreed to do the drop shipping for him. This guy seems to be focused on quality and service, and not focused on price. I hate the type that only wants cheap. This would be an ongoing, volume customer, which is perfect for me.