I pretty much stay out of the whole Open Office debate since I seem to be pretty much unaffected. My powers of concentration are obscenely high so even without headphones I have to work to be interruptible.

I actually liked Open Office plans because there were more interruptions. When you have a family to get home to there is something wrong with realizing it's nearly 10pm and the last thing you remember before you started coding was eating lunch. The open office plans gave just enough background distraction to allow me to surface every once and a while.