Hi LP...

That's truly an amazing thing you are doing. The 2 of you must be truly special people.
From what I understand..if you want a known recipient..you are firstly going to have to find someone waiting..and there are so many. I know many people advertise in Sydney Child..ahhh cant go back and see where you're from right now..but am sure you have similar wherever you are. I think if you donate thru a clinic directly it would most certainly be anonymous. In NSW the law now states that when the child turns 18, they are able to obtain birth parents info..but not before. So in NSW you are only anonymous till the child turns 18. This is why we are so short of donors...sperm, eggs and embies. Some people dont want their details released and therefore will no longer donate...hence the massive waiting lists at all clinics for all 3.
I also dont think that the clinic direct will take them unless you are finished your family..but you'd have to check that. Obviously, they also look after your best interests as well.
LP - good luck with you pregnancy...I am sure 2 special people like yourselves will have a wonderfully gorgeous baby..