Okay, so I went and got the Sennheiser HD 595 headphones. I plan on using them with my laptop and I'm at least going to try them with my iPod to see what happens.
Ideally, I would want to listen to them powered correctly, and I really don't know much about headphone amplification.
I have heard the terms DAC, headphone amplifier, and apparently there are two-in-ones?
Well, I don't want something too big, or too expensive. Maybe someone could list some various price points and the best options relative to my cans of choice?