Hello,
I'm not sure of your financial situation, but I would try and not be rushed into any decisions based on your FS's presure to start due to the changes to medicare. I know that is easy to say, but making the move to IVF is a big and stressful decision.

Having said that, my DH and I undertook IVF (with ICSI) due to poor sperm, based on similar advice - that IUI would not work for us. My DH was not keen to take meds to improve sperm and so we pretty much went for IVF as our only option.

I know that menevit has helped some people, and there is no reason why your DH could not start it now anyway in the hope of having better swimmers to use through an IVF cycle. You could always start on that course and plan to do one cycle, and if his swimmers improve enough, but your first cycle is not successful, you could always go back to trying naturally or through IUI.

Good luck with your decision - I guess that if you are not comfortable with the advice you have got, you could always go with a second opinion.

Good luck
FG