Thank you for the responses! I did end up finding the post-template yesterday. I hadn't thought searching the word "template" would return favorable results. However, it did!
What I'm struggling with now, is to create a panel in the Dashboard that accepts input for "current specials" (it will be a global value). I then need to be able to call the value into a post.
I found a plugin called custom fields shortcode, but the variable it pulls in isn't a global variable that can be pulled into all posts dynamically. So I'm stumped.
The reason for all of this, is I need to use tabbed navigation in posts. I am not sure how to code them in, so I used a plugin that makes the post content look something like this:
[tab:Overview]
Placeholder Content
[tab:Amenities]
Placeholder Content
[tab:Map]
Placeholder Content
[tab:Prices]
(INSERT current special here)
Base price placeholder
Example page on the site in question:
http://adifferentimpression.com/clients/horizon/vacation-rentals/beach-time/
I hope I'm being clear enough. I'm new to the Wordpress forums :)