OK, I mentioned this to you in your introduction thread, but I use Xara Xtreme Pro 3.2, however there is a Xara Xtreme (not Pro) for about $70, whereas Pro is like $250, but the "non Pro" version can do anything in the creation of maps I currently use, it just has other stuff, my day job needs, so that's why I have and use it.
The point being, Xara Xtreme is sooooo easy to learn and use, you'll be creating what you want the same day you started using it - really. There's such a loyal GIMP crowd here, I don't want to step on them, so I'm less pushy to trying out Xara, when there are so many options. I'd say Xara almost has no learning curve, its that easy to figure out!
It's faster than most applications (I've used many, so I know) and extremely powerful, I use for much of a daytime job, its that versatile. Although, yes, its a paid for program, but you can download a 14 day trial for free, to give you time to figure this out.
I've got a couple tutorials using Xara for mapping, located below:
Making a Regional Map using Xara Xtreme
Got several other Xara tutorials, but the following one emphasizes one of the important tools that offer tremedous design creation - a must learn feature, and be sure to download the PDF link there...
Using Combine Shapes in Xara Xtreme
Remember, I'm not trying to convince everyone to use Xara, over other available applications, but you did ask for EASY to learn, FAST to use, so this is the only reason I'm asking you to try Xara Xtreme!
Every map whether starting as a hand-drawn work or completely digital, I've created for the Guild since I first joined involved Xara Xtreme in the workflow, or was completely created in Xara alone.
Its easy, easy, easy, powerful and fast! Please use your preferred app, I don't want to twist your arms away from it, but if you're looking for something different...try it!
GP
PS: I don't work for Xara, never have...