You may stream .FLV videos without any streaming server such as FMS.

A new version of flvmdi injects an object containg two arrays into the flv's metadata. It contains the exact starting position in bytes and timecode of each keyframe. Using this information we can request any part of the flv file starting at a specified keyframe.

Here is the source code for the PHP solution
http://www.flashcomguru.com/downloads/phpstream.zip

and here is the discussion about it
http://www.flashcomguru.com/index.cf...a-PHP-take-two

IMHO it is more a solution for web-sites not having too many visitors.