I'm a healthy 6 ft, 185 lb, brown eyed caucasian. I have no history of diseases. Never smoked or used drugs. My Grandparents lived into their 80's and 90's. I have an advanced degree from a top 20 university.  I live in Western IL, but am in Washington, DC for several days almost every month.

I have provided AI twice, though I prefer NI.  For me, I like NI due to simplicity, better chances for pregnancy (at least with the women I have helped), and it just seems more human and less mechanical.  (You'll never have to wonder whether to tell your child that she/he began in a plastic cup and a turkey baster.)  ;-)

I have not had much experience with anonymous donations.  I have helped a few friends of friends (3 pregnancies from NI).  It was seeing their joy that made me look into becoming a donor almost a year ago.  I suppose I could say I have enough experience to know I am fertile and can help you! I am in my early 40's, and I am in very good shape.  I have no difficulty keeping up with people half my age!  :-) 

I know you will find my life experience a plus in this situation.  I am not into little boy childish games.  I know this is all about you and your desire for a child and that you need to be comfortable at every stage.  This is not about my need to pass on genes or anything else.