In Adobe CS5 Premiere Pro, speech analysis (and transcription of video) is supported on the Mac version. This is different from what was discussed at the last WDN meeting. Admittedly, since I am not on a Mac, someone should verify this with a proof-of-concept test.
Not only that, but you can get extension packs to transcribe a variety of languages: http://www.adobe.com/products/premiere/speechanalysis/
Hope this helps!