Here is a list of current software from Adobe strongly related to (live) Flash Video:
Flash Media Streaming Server 3 : streaming server for live and prerecorded flash video, $995 in US.
Flash Media Development Server 3 : free FMIS3 but limited at 10 simultaneous connections, download here (registration needed).
Flash Media Live Encoder 2.5 : free desktop tool that helps you capture, encode and stream live video and audio to Flash Player applications using Flash Media Server or a Flash Video Streaming Service, free.
Flash Video Streaming Service : a list of Content Delivery Networks that support live & pre recorded flash video delivery.
Adobe Media Player – iTunes for flash video, free for viewers.
Flash Media Rights Management Server – DRM solution for flash video, price not specified but probably very expensive :).
Update September 11 2008:
Flash Media Encoding Server -server side solution for transcoding video files to video formats supported by the Flash platform.