The newly-released Expression Encoder 4 Pro can do both live encoding and offline conversion to H.264. The live encoding is wrapped as IIS Smooth Streaming.
One great thing about EE4 is that it costs only US $50, which is much less expensive than Wirecast or Adobe’s Flash Media Live Encoder (…once you add on the MainConcepts AAC plugin for QuickTime compatibility, which is important for some of my customers).
Will Wowza be able to accept EE4 as a live encoder source?