I know what you mean. I have a res that's mated with my male one and expect she'll be looking for a nest soon too, so I wonder what I'll do myself. I'm not worried about adding to the dilemna of over-population either because I plan to give these hatchlings away, making this a sort of neat experience.

I mean, it's kind of a neat acheivement, so my hat's off to you. If a person can take care of a res so well that they mate and flourish, it's a great sign of being an expert turtle hobbyist.

I think overpopulation is due more or less to careless and irresponsible pet owners and the past pet trade in and of itself.

But I understand res's are too ubiquitous and you may want to consult a confidential person about this, such as a professional breeder of herpatoligist at a zoo.