From the map collection at Texas University
http://www.lib.utexas.edu/maps/histus.html
Not exactly what you are searching but perhaps useful, in the wikipedia the eastern theater is this, and is labeled so here. The south with Florida is called
Lower Seaboard, but could not find a similar map
Perhaps this one is too much, east and west
Hal Jespersen is the author of many American Civil War Wikipedia maps. Most of them are related with campaigns, so not useful as operational or strategic maps that you are looking for. But they are vector maps and can be edited with software like adobe illustrator. This is the link for his site, where you can donload them
http://www.posix.com/CWmaps/
This one is strategic and could be used as a reference. Of course editing this maps with your own campaigns would requiere a lot of job
http://en.wikipedia.org/wiki/File:ACW_Western_Overview.png