We had the ultrasound last week. (my computer is still down, so we don't have the images scanned yet)  Its very definitely a girl.  I was surprised, I was so sure that it was gonna be a boy.  Bayvin is extremely disappointed.  She wanted a brother.  I'm sure she'll get over it when she's born.  Since Grif was so sure it was a boy, we had NO girl names ready, but finally on Saturday we decided on "Rowynn".  We're still thinking on the middle name, but I don't feel as much of a need to rush that.
As soon as we found out, Grandma, Bayvin and I went to Babies R Us and got a lot of clothes.  Rowynn is about set for the first 3 months, clotheswise.  Though they do go through 2-3 outfits a day... so we might need more hehe.