I have a couple of different valve and solid state loudspeaker rigs built around Stello, Quad, Cayin, and Aurum Cantus gear too. Maybe I'll list it all here again sometime, along with additional cables, interconnects, and other hi-fi stuff (I had it all nicely detailed - until the great site outage of '07!). Until then I'll just list my headphone related gear.
Gone: Stax SR-Sigma, Stax SRD7/SB, Beyerdynamic DT990 (05/06 250 ohm), Sennheiser PX100, Little Dot II+, iPod Video 5G 60GB (stolen)
Almost everything, which makes walking into music stores quite dangerous!