For me, I think I'd prefer adoption. Like you say, there are already enough people out there who don't actually have family and the world is becoming overpopulated as it is anyway. But then there's always the fact that it isn't really your child that would be stuck in the back of my head. There's something about creating my own that I just love the idea of.
In the end, it's going to be up to you and Karma.
[Insert witty comment here]
Feel free to add me up on facebook
. - Just click here.
Do send a message in your request saying who you are and that you're from this forum. It will help me filter out any spam requests.