Effective IDE tools for F #?

I recently started my first F # project using Visual Studio 2012. I was surprised (or rather disappointed) at the lack of IDE support for F #. For example, the classic Ctrl-r Ctrl-r keyboard shortcut for renaming refactoring seems to be missing entirely. I installed the F # powertools extension that provides some support for this, but apparently only supports renaming in the F # part of the solution, not, for example, the C # part of the solution (the solution contains F # and C # projects).

Are there extensions for Visual Studio that provide rename cross language features?

All in all, as a slightly vague question, which IDE and / or IDE extensions do people find effective for programming F #? I'm so used to supporting VS2012 refactoring effectively for C # that I can't help but find its absence a significant blow to using F # effectively ...