Is there a setting in Resharper 4 (or even Visual Studio itself...) that forces a warning if I forget to wrap code in a using block, or ommit the proper Dispose
using
You might want to look at FXCop for this: http://msdn.microsoft.com/en-us/library/ms182328(VS.80).aspx
Its a pity R# doesn't handle it, even if just a warning for fields in your class and/or variables you create.