Often, I need to recompile and it takes a minute or two, so I tend to switch to a web browser to kill that time. Sometimes I forget to look back and the build succeeded a fe
I'm seeing in my System Sounds a category called "Microsoft Visual Studio Macros" that contains three sounds: Build Canceled, Build Failed, and Build Succeeded. I'm guessing they got there from the sample macros that get installed by default. Might try hitting Alt-F8 in VS and poking around in the macros.
My favorite solution is this one though: VSBuildStatus. If you've got Windows 7, it will show the build progress in the taskbar (like Explorer does with file copying). Turns red on a build failure. Must-have.
http://visualstudiogallery.msdn.microsoft.com/en-us/2A2293B4-1808-44AA-B030-661F6803D8A1