Mac---
thanks for the info! I'll have to see if my web provider has a hosting feature as part of my account.
VTV---
I am biased towards Grado and think that a pair of Grados balance out any multi-headphone collection well. The 125 works very well with modern music, in terms of its proximal soundstage, and its handling of bass is different from the 890---fast and precise, while still conveying a lot of impact. The 60 has the traits of precision and speed in its bass, but loses a lot of the 125s impact. The 80 is an odd bird, and seems to lack the fine control of the 125; more bass than the 60, but less precise. I think the 125 is the first Grado that "does bass well" as you move up the brand line. I think the 890 and 125 would complement each other well, but neither one is good for portable devices, so if you planned to use em both at home, this would be a good pair.
I could also see using the Senn 280s and the 890s as a good combo as well, especially if you occasionally wanted to use one of the two with a portable. None of the other 3 phones I mentioned (580, 497, SR60) would complement the 890s all that well.
LT---I'd love to review the Stax sr-2001mk2, but there aren't that many Tuberollers out there!
I am getting some ER6s next, and my 910 review should be forthcoming in the next week or so.