The open source world has NUT to offer (Network UPS Tools).

We've been using it at work for all our critical servers. It works with pretty much all UPSes, and on pretty much any production OS, so you can use your existing servers and just buy whatever hardware the budget affords.

The linux/unix servers and clients are excellent, and there is a reasonable Windows port for the client (which we've modified a little to suit our needs).

The cost is just your sysadmin's time, as with all F/OSS solutions.

Also, the producers' work will be viewed by thousands of people, and probably reviewed by tens of professionals and might reach production company managers, who may hire them for their next movie...

If you are unknown, then this can be the perfect entrance to the industry. But you have to be good so that your free product is at least somewhat impressive.