I agree that the name Haven is perfect for him. It sounds like you have everything under control and are doing everything just right for all the kitties.
I'm so thnakful that you and Nathan saw and acted upon the cruel behavior of that physco woman! I'm sure you are going to have many years of love and enjoyment from little Haven. He will thank you a thousand times over with laughter and love.
Hope all goes well at the white coats! Keep us posted and please pass along a little *smooch* and {{{hug}}} to that precious little boy!