dragon un-naturally speaking
A friend of mine a while ago let me have his copy of Dragon Naturally Speaking, the voice recognition software. I've had limited success with it (although admittedly I haven't been able to use it a lot).
It has one feature that will take a pre-recorded audio file - i.e. MP3, and transcribe what it hears into a Word doc. Sweet! I wanted to use this a couple weeks ago when I transcribed a talk by Mark Driscoll on the emerging church. It was a one hour sermon, and doing it manually was going to take serious time. This seemed like the solution.