I am a Mechnical Engineer working in "the industy".

Office Rig: WMA Lossless -> Total Bithead (2006) -> RS-2 #394, SR-60.
Portable Rig: iPod 80 GB -> HearRoom Airhead -> E4c, SuperFi 5 Pro, Ety ER-4P, Senn MX-400, Koss PortaPro and KSC 35
Home Rig: All I get to listen to is the wife and kid!
Other Cans (not used much): SR-225, Senn HD 595 and HD 485,...