Audio-Technica produces a nice pair of wireless headphones that include a Dolby/DTS decoder in the base-station. I believe they're a JDM import, as I've never found them on the Audio-Technica US website. These:http://www.audiocubes.com/product_in...oducts_id=2919
That vendor, AudioCubes, has an entire section devoted to these kinds of headphones:http://www.audiocubes.com/index.php?cPath=23_62
I'm not intending to break any rules here by mentioning prices - this is simply one of the most organized/coherent spots I've found on the 'net that deals with this genre of equipment.
There are other options from Pioneer and Sony that cost less, although I'm less sure on the sound quality (I'm not saying they'll be "bad" I'm saying they may not be up to the same level). This would be a complete replacement of a receiver/speaker system. You can add headsets to most of these wireless (RF) systems quite easily.
The other option would be room-in-a-room construction, I have no idea if that's feasible for your environment.
Finally, if you're alright with headphones, but also alright with running some wires around, you could get wired sets of headphones and a multi-output monitor amplifier (Rane, Behringer, and so on produce such products - they generally can supply 2 to 6 pairs of headphones) - there are many more inexpensive wired headsets than the Audio-Technicas (they also won't eat batteries!). Such a distribution amplifier would probably be under $100, and you can get wired headsets for as cheap as $10 depending on what you purchase (I would look for full-size, around-the-ear models; closed/sealed designs will probably fare better in your environment than the open-backed models (including the above Audio-Technicas); I'd probably pass on any sort of ANC solution though unless you can test it out in your environment first (I believe Bose will allow you to test and return their products if they're not suitable; I have no idea about Sony, Monster, Audio-Technica, or other manufacturers of ANC headsets)).