Question: Most of the work being done at my company is Qt-based C++, and it's all checked into a Subversion repository. Until now, all work on the codebase has been done purely with nano, or perhaps Kate. Being new here, I would like to take advantage of setting up Eclipse -properly- to edit my local copy of the tree. I have the CDT "version" of Eclipse, and the Qt integration, and the Subclipse module. At this point, though, I don't know what to do. Do I "import" the projects into an Eclipse-controlled workspace? Do I edit them in place? Nothing I've tried to do gets Eclipse to recognize that the "project" is a Qt application, so that I can get the integration working.

Answer: 
I would create a new QT project in eclipse, then switch perspectives to subclipse and simply do a SVN checkout into the new eclipse project. You should be good to go.
My solution:

1. go to the svn-view and add the repository location for your project
2. check out the project some temporary location with svn or any client you like
3. choose 'File->Import...' and say 'Qt->Qt project'
4. browse to the location of the \*.pro file, select and hit the OK-Button
5. you are in the game with an appropriate Qt-project and Subversion Access for that project