I just had an extensive genetic test done at http://23andme.com. It's really cool, you should check them out.

Anyway, turns out I have a very bad gene where 34/100 people with it get deep vein thrombosis and it's even worse if you supplement hormones. So I think that probably indicates I shouldn't do HRT, bioidentical or not. Blah!

My brother had it and my mother did too.