Well, since I got a bit more involved in mapmaking since I first answered the poll, I guess I´ll have to list a bit of the software i use.

Nowadays I mostly play around with CC3, tryng to learn it, and unlocking the power inherent in it, but I still rely on Raster software like GIMP for some things in post-CC .
The software I use is more dependent on what type of map I am (attempting) to make, so I change software pretty frequently (always up for new suggestions).
But my most Important tool is my Wacom drawing tablet, giving me a lot more precision than a mouse.