Tara - not sure if you've already got the results of your CVS back yet? Just saw this thread today. Fingers crossed that you got a good result.
Doochydoo - Like Tara I had a good result from the 12 week scan and then bloods came back as high risk 1:24. I didn't opt for an amnio or CVS as I wouldn't have changed anything. We had our little girl in early May and all was fine. I hadn't bothered with the blood tests for my previous two pregnancies - perhaps ignorance is bliss?
Hope your amnio goes well and you get a good result.
Best of luck to both of you.