Yep -- just found out today. My wife and I went in for her first ultrasound, and we found out that we have two on the way!

The ultrasound was the neatest thing. The two babies were laying parallel to each other, but the baby on top kept kicking the other one in the head! I'm sure that this is a sign of things to come

This was definately a Christmas present we had not expected.
I uploaded a few pics of the ultrasound to my website:
Ultrasound pics
These will be our first children -- wish us luck!