The problem you'll have is that DVI only send out video and not audio. The type of solution you're looking for is called a matrix. It's away to share your sources with multiple TVs in a home and B&O has some supported matrix solutions that can be controlled via PUC. However, for just two TVs, this would be quite an expensive solution.
Which sources are you wanting to share? I see that you're in the US. Later this year, Apple is going to start supporting cable companies in the US such that they can use the Apple TV in place of the set-top box. With 2 Apple TVs, you get a seamless integration with them remembering where you left off from another room. Also, for blu-ray discs that you have, you can redeem the digital copy and Movies Anywhere will add that copy to your iTunes library to play on the Apple TVs.
If you don't have "Apple Remote" or "Apple TV" already in your PUC, you can make the Apple TV learn the IR codes from something else that you have in your PUC.