mumtochris - EO covered it. I wish I had that list in the beginning!!! I have had a hysteroscopy, biopsy, NK cell test and all the other tests EO mentioned. I am now at the point the FS wants to do PGD on the embryos.
Girls there are a zillion blood tests you can have. They are simple and can answer alot of questions. As lindy said, some of the BTS can be pricey though.
daydreamer - from my experience, it makes me feel better to think I have been proactive and will have some results to discuss with the FS.If you feel you wanna get some more tests, then go right ahead. It can only make you feel better to know you covered more avenues.