I have seen examples of people speaking to their computer and it writes down everything they say. How can I do this with MS office 2007? Are there any other programs that can also do this?
The SAPI engine built into Windows also will do this.
Windows has built-in speech recognition, at least in vista/windows 7. Just type speech into your start menu.
They moved the speech recognition out of Office 2007 (it was in 2003) and into windows Vista/7