Let the hive mind of Engadget get that for you.
"What is the best wireless surround sound speaker solution? I have a home theater where running wires is just not feasible. I have my own speakers, so I don't want a system that has speakers with integrated wireless. I've done a far amount of research and have only come across a few companies that even offer a reasonable solution: KEF, Kenwood and Rocketfish. Is there anything else out there? What do you recommend? Thank you!"
FWIW, the content you downloaded to your Vudu box is yours to keep. Since it's not streamed, you can play it without Internet connection. So, for example, I can take my box to a friend's place and show off Bourne movies in HD without having to hook it up to the network.