Another baby?

Ari will be 27 months this Friday. Obviously, there is no deadline as far as by when we must decide to have or not to have another child. But, for some reason, I keep feeling like it is almost time to decide. Silly, I know. I do have a tendency to obsess about things! I am trying not to.

We have no idea right now. Lately, I am feeling that our family is perfect as is. But, at the same time, I don't feel like our decision is final at this point.

I wonder if being an only child will be good for Ari. Any thoughts on that? I wish I could meet multiple people who are only children and are healthy and happy adults. All the only children I have met seem to be clingy and dependent. Is it a coinsidence? Or, is it that growing up as an only child changes one's life for ever in a negative manner?

I found an article about things to think about when considering trying for another baby:
http://www.pantley.com/elizabeth/advice/0809228475.php?nid=360

I plan on researching the impact of being an only child.

Thoughts? Feel free to share!