Help with streaming video from nas machine

Hi everyone, I am new here and to flash. I have a site that is quickly running out of room for storing uploaded/live streamed videos. My original setup was designed to keep my videos on the web/flash server but I changed it to hold the videos on a nas server. Right now the video can only be viewed if I tap into an outside IP of the nas server (I was told flash is client side so pulling it through the local area network 10.10.10.0 was not possible). The problems I want to address and could use help with either direction to resources or design ideas is with having all video pulled from 1 nas server over the internet instead of being able to load balance say 5 web servers each pulling the video/stream from the nas server over the local area network. I would like to figure out how to pull the video/stream via the local network from a load balanced server instead of directly from teh nas server over the internet.

Any help in overcoming this issue would be greatly appreciated.

Flinstones