MediaWiki easier???

I want to start using wiki's more often for internal document structure, but there's really no great solution out there. FCKeditor for MediaWiki

Maybe this could be a good project..

• Internal office information with access levels (you don't want marketing people into common IT passwords..)
• Media wiki would be ideal, but its just too hard to use..
• need something more like a blog interface.
• office document modification would be a plus
  
• open up and edit .doc, .xls, etc...
• Google has an ideal solution, but I do not believe its portable (exists only on their servers..)

On a side note, wordpress is starting to talk about integration with Wordress and PHP Wiki. Looks kind of interesting...