Microsoft have released a set of extensions to Visual Studio Professional (and above) which improves developer productivity. I especially like the ‘Highlight Current Line’ feature which makes it easy to locate the line where the cursor is located, like this:
Another cool feature is the ability to color tabs according to their project, like this:
The extensions contains a lot of other nice stuff, check it out / download of from MSDN:
http://visualstudiogallery.msdn.microsoft.com/en-us/d0d33361-18e2-46c0-8ff2-4adea1e34fef