Serif PagePlus SE is free. Only for Windows. It is essentially PagePlus 9, with the current rev level being XE, which would be 12. More on PagePlus including links directly to the free version and the for-pay version:
http://en.wikipedia.org/wiki/PagePlus

There are those of us who argue that PagePlus is better than InDesign, but of course, we're biased. PagePlus is certainly easier to use. PagePlus and Microsoft Publisher stay pretty much neck-and-neck on the features front, but of course Microsoft won't provide earlier revs for free.

Edit: forgot to mention that the Serif forums resemble this venue -- all the freedom you need to ask questions and a top group of highly experienced and knowledgeable users who often provide answers instantly.