I have Visual Studio 2010 /SP1 / MVC 3 (With April Tools Update) installed on a machine with a fresh install of Windows 7 64-bit Professional.
I do not have resharp
We ran into issues because it appears the compiler uses the 32-bit MSBuild when building the Razor views, even if you have all of your projects set to 64-bit or Any Cpu. Our web project would not compile when we forced it to 64-bit because the razor views were being built in 32-bit and failing because some of the views were referencing a project that had a 3rd party 64-bit dll referenced.