For a while now, I've been using a fantastic app called Quicksilver on my Mac. Its a great app if you are a fast typist because it gives you an easy way to launch any application from the keyboard without having to hunt through any menus. Just hit a key to bring up the program, type the first few letters of the app name and it runs.
Well, I just found a Windows equivalent to Quicksilver! It's called Skylight. It gives you they same keyboard based application launching that Quicksilver has. Try it out!