I have painstakenly detailed a massive overland map by hand, in Photoshop AND Campaign Cartographer 5, 6 & Pro versions. Like maddman75, I had worked as a draftsman with AutoCAD and found CC5/6 incredibly hard to learn. The problem is in the shortcut keys. If you check out the developer Yahoo Groups for CCPro, you will find that there are shortcuts that you can download and install which make it respond much like AutoCAD (who here has tried typing "l" in for a line by accident because you were used to it?!?). I just got CCPro, and it is far better than the older versions for simplicity and power. The prices just went up though. :\
I will dredge up a link to the shortcut files and post it here when NyQuil isn't kicking my head in.