I had a similar problem. My wife works out of the house and I can't play the big rig during the day. Also no vocal music and symphonic stuff at night if she is working.
I wanted a headphone system with close back phones that was faithful to the music and "really" good but not as good as my speaker driven rig. (always my #1 preference for listening).
After making my myself crazy reading online reviews (I got a crash course in the cult that is head-fi listening)...I settled on Focal Stellias driven by a Mytek Liberty II DAC/Headphone amp. I couldn't be happier!
The Focals are easy to drive and my new "private" stereo system doesn't give up too much to my reference Vandersteen/ Ayre/ Audible Illusions/ Benchmark/ Audioquest reference system. And they are really comfortable and best of all....I can play whatever I want, whenever I want!!