Hello there
We are trying for our first, so slightly different to you, but I can totally empathise with where you are coming from.
But, when exactly IS a good time to try for babies? If you look hard enough there are so many reasons to wait - the financial climate, swine flu, your career, not enough room in your house, not enough money in your savings account, living too far away from family, living too close to family.....the list is endless.
My opinion is - if you feel ready in your heart, then this is the right time to try for number two. So if you feel you are both ready, go for it!