Headphone Inventory
Grado RS-1, Sennheiser HD650, Sennheiser HD595 'Magic Red' Anniversary Edition, Sennheiser HD25-1, Sennheiser CX300, Koss KSC-75, Jecklin Float Model 1, AKG K1000
Headphone Amp Inventory
Cayin HA-1A, Stello HP100, Rockhopper Audio Mini^3 'CanJam '08 Special Edition'

Sennheiser DSP 360, Sennheiser DSP Pro
Source Inventory
Marantz SA11-S1, Rega P3-24 w/ Ortofon 2M Bronze, Conrad-Johnson EF-1, Apple MacBook Pro, Denon UD-M3, Stello DA100, Lite DAC-AH (CAA Hi-Po Mod), Alien '2600' DAC
Cable Inventory
10' Clou Cable 212 'Red Jaspis' for HD650, APureSound v2 hardwired K1000
Other Audio Equipment
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)
Music Preferences
Almost everything, which makes walking into music stores quite dangerous!