So, the solution I used was to write my own program. It may work for you; if it does, I'll gladly PM you a link to download the zip file (of course, no warranty, it is as is).
Below is a description of the program, to see if you are interested; I (obviously) made it for my exact needs/desires, so it may not work for your intended playstyle.
Before using the program, I use GIMP/Photoshop to build each segment of the fog of war. Each of these segments are saved as PNGs (to preserve transparency). I then put on text as one group for my DM labels (e.g. room names, information I want to know but don't want the players to see). I also have a PNG for map labels (information I want the players to see on the map). Along with a separate image for the base map, and optionally a separate image for the grid, I construct, in a folder, all of the map elements.
Running the program on a laptop in extended mode, I have two different screens: the DM screen on the laptop and the Player's screen on the second monitor (in my case). The resolutions don't have to match, as I have scrollbars to adjust for the monitor differences. As I scroll the image on the laptop, it will scroll the image on the player's screen. The player's screen can be blacked out as needed.
I import these items into controls interface using the "Select Directory..." button (shown in the image below):
Everything gets placed into the Fog of War Images. I then select the base map, map labels, DM labels, and grid (as needed, all of them are optional), leaving the rest of the images as the fog of war. Select All will take care of showing all of the fog of war elements. The program builds the display image in layers, starting with the base map.
The Map Zoom Factor is used to adjust the image; I've been using this program to run Iron Gods recently. I have this zoom factor so that I don't have to do adjust it in the image editing software; I can just do it on the fly. It also works nice when I want to give an overview of what they saw.
The save/load layout saves all of the options to a XML file, and saves the position of the image, and which elements were on/off. That way, if the party is in the middle of exploring a dungeon, I don't have to remember which elements have to be on/off for the fog of war.
The rotate button helps fit certain elements on the screen better.
I also have the capability of showing individual images (e.g. monster images, persons from the adventure path, etc.). I also have the option to send this to a FTP site (by IP address), so that I could display it from a tablet.
Anyway, if you are interested, let me know, and I can send you the zipped up file accordingly.