Another vote for Sandisk Extreme.

The only card I wouldn't use: Transcend. Note the stickied post at the top of the forum, and read through it. Transcend cards seem to cause the camera to take a long time to clear the buffer - so, shoot on CH, fill the buffer, and most cards take 9-10 seconds for the buffer to empty. Transcend seem to take 25+ seconds for the same operation.

I started with Transcend before I knew this, and had to be very careful about how I used the CH setting. Getting Sandisk cards really changed how I can shoot fast-paced events.

EDIT: Congratulations, and good luck sleeping for the next couple days! Enjoy - it's a great camera.