The other home depot had 12, so I was ok. I went this morning and ran the cables. I only had time to do the two surrounds and one RG6 for a sub.

I brought my drill, but both batteries were dead, which meant I could only use existing holes. As a result, the speaker wire is running next to the electric wire. I'm hoping this doesn't cause an issue.

Thanks to everyone for your help. Now if we could just sell the existing house we'd be in great shape! Anyone want to move to King of Prussia, PA? ;\)