Oh well, I pulled the trigger on this deal and the seller agreed to deliver it to me on Tuesday. Nice. I am going to be staying in a hotel downtown for a few days, so I guess I can use my iMod or laptop through the Pico as a source and have a pretty damn fine "road rig."
Thanks for all the input on my questions. Much appreciated. Now, I just have to find out for myself if the O2 is all that or not. Then, I will be able to compare with the 4070 as soon as Todd gets those delivered to me. I guess that makes me a pretty clear member of the Stax Mafia, in addition to the AKG Mafia, the Ultrasone Mafia, the Sony Mafia, the Grado Mafia, the Sennheiser Mafia, the Shure Mafia, etc.