One of the methods I find to be the most useful in .Net is the method Dictionary<TKey,TValue>.TryGetValue .  This method is a nice compromise between performance, explicit return vs. exception, and a being verbal about the chance of failure...

I just released an update to VsVim for Visual Studio 2010 RC.  This should be available shortly from the extension manager in Visual Studio or it can be downloaded directly at the following link Link: http://visualstudiogallery.msdn.microsoft.com...