It seems like a lot of people like the furman options for headphone distribution.
What's made our lives a lot easier is this new little booger called the <a href="http://www.prodigy-pro.com/SearchResult.aspx?CategoryID=11">Hear Back System</a>
Since we use ProTools, we send from subgroups: DrumSub(stereo), Guitars, Vocals, Bass, Keys, etc... up to 8 channels out to the hear back mixers so the everyone in the live room can dial in their own mixes. It's eliminated A LOT of the cue mix tweaking from the control room, but you still get the occasional request to turn an individual mic down/up.
Hope that helps!