Home use, I doubt I'll ever being using these outside my cave, but they'll be driven by a laptop and I may or may not get a desktop. (if I do, then xonar all the way) My codec is ALC269 if that matters. As for purchasing, I have access to Best Buy and online and have no preference.
I noticed you mentioned the HE-400 -
- Would you prefer open or closed back?
- Are you specifically after planar magnetic headphones?
- Any reason you would prefer to go a soundcard over an external DAC/AMP combo?
(The only reason I ask, is that the USB DAC/AMP combo could be used with both your current laptop, and future desktop)