Wow E., that's a big decision. Are you considering donating a kidney to family member or close friend that is in need? Or do you have a desire to help a stranger?
You have two small children. You need to consider how this surgery and it's consequences will affect them as well as yourself. Your first responsibility is to them.
I am an RN and I have cared for several patients following a donation and transplant. It is NO JOKE. It is usually a long process for both patients and is not without serious risks and life-long effects. Weigh your options carefully, do your research, talk to your doctor and think long-term about how this will affect you and your family. Good luck!