Here is some new research findings on the effectiveness of IUI:
Researchers from the Shady Grove Fertility Reproductive Science Center will present studies at the 68th Annual Meeting of the American Society for Reproductive Medicine showing that the effectiveness of intrauterine insemination (IUI) for unexplained infertility falls off for women over the age of 40 and that, for women aged 38 to 44, IVF is more effective than IUI.
You can read more at: http://asrm.org/news/article.aspx?id=10321
While I understand the statistics t's not an easy choice, especially financially, to make the move to IVF. How many cycles of IUI are you planning on trying? Does your age play a factor in that decision?