With regards to the AD700, portability is not something I'm especially concerned with. I probably should have made that clear in the op. I did more research into the AD700 and my mind is more or less made up to order a pair, but suggestions are still appreciated. This is going to be pretty much...

Hey, like purple all you want, it's just not exactly what I had expected to settle on after days of looking through a million sleek black and silver pairs of monsters that apparently sounded great but didn't do what I needed them to. It is nice to know that they sound great though, and with that...

I'm looking for a pair of headphones mostly for my 80gb iPod classic, they'll get used on my PC a bit too though. Ideally, they'd be circumaural with open backed cups, and wouldn't suffer too large a preformance hit without using an amp. My price ceiling tops out around 150$, but anything...