Once again, the generosity of Head-Fi members is astounding. Kudos to you, Afrikane.
My current rig? Well, I got a new Nano for XMas so that's my source. No amp yet but I've been researching them and it's only a matter of time. For headphones, I gravitate towards the bang-for-the-buck gear. I switch between Koss KSC75s, JVC Marshmallows, Sennheiser MX500s (occasionally) and JBL Reference 220s. I've also got Sennheiser HD410SL from the mid-80's that I use regularly at home.
Favorite song? Kinda hard to say. I've got several, depending on my mood. If pressed, I'd single out 'Rude Mood' by Stevie Ray Vaughan as one of my top contenders. I really like the solo version off the Live at Carnegie Hall cd.