I remember reading somewhere that there are actually 16 of them ready to be built awaiting (and awaiting and awaiting and awaiting) regulatory approval.
The license application for the Vogtile plants was submitted to the NRC in March of 2008. Here is the NRC Licensing Review Schedule for the Vogtile plants.
Looks like the earliest date they could begin construction would be in the Spring of 2011.
Here is a link to all the applications for new plants currently before the NRC.