Wiki recommendations -- Practical Experience

[p.echols at comcast.net]

Greetings:

I have been reading up on some of the popular wikis.  I am looking for recommendation based on practical experience. Below are what I think I know so far:

Basic Use Case:
Intra-net wiki for project collaboration, production environment with two prime users and about a dozen max.  Goals are maintaining common "whiteboard to do lists" and project Collaboration.  Will be installed on an existing, working LAMP stack.

Here are my "Requirements" in order of importance:

1. Easy for end Users.  The end users are NOT "computer people".  (Have basic office skills though)
2. Document output to hard-copy (preferably by hierarchy)
   a. Can Export pages to O.O. or PDF
   b  As an alternative to "a" can print pages to look like a word processing document, not a "web" document. 
   c. Or provides a document version control that can handle OO docs or MSWord
(The major project involves creating materials for a board meetings, if the users can collaborate in the wiki that is great, but eventually they need to create hard copy packets for attendees)
3. Version regression
4. Flexibility to import various document / media types and format for display. (pdf, jpeg, spreadsheet . . .)
5. Configurable display
6. Easy to install and maintain.  Though I am not on the production team, I have to run the darn thing! (and not getting paid for it).

Here are those I have read about so far with comments:

MediaWiki : Looks like it may be overkill, and I did not find any info about exporting:

Twiki : Lots of optional plugins, not clear that there are document exporters, but it does promise to provide document revision control (2.c.)  I'd be interested in knowing how that works.

MoinMoin : Looks like a good candidate.  There is at least one exporter to OO format I could find.  I've closed their page at the moment, but I seem to recall that links need to be in CamelCase.  Not good for end product.

TiddlyWikki : Underkill, no revision backup

Ikiwiki, PMWiki, WikkaWikki, and Dokuwiki : these are some on line commentators "favorites" but I have given only cursory looks and run out of time to read until this evening.

If anyone can share thoughts, I'd be grateful.