Everyone's been saying the new Sennheiser flagship is coming for a long time. If you ask me, something so widely appreciated as the HD650 will never become obsolete, unless the new model offers the same or better at a lower price (unlikely IMO).
Just wait until I get the M^3, which I don't have trouble accepting as greater than the Opera if it is. I can say that the built in DAC is rather lackluster, but it's not a great price jump from the analog version, so that can be expected.
Where do I get started with case work? Obviously you get a case, drill necessary holes, and mount everything, but how do you pick cases and what kind of tools are necessary for plastic or metal?
The DT770 is as portable as (or more portable than) the D2000, so that's not an issue. But I think the real winner here is the HD25-1; I need to try me some of those some day.
What is the proper care of electrostats regarding plugging stuff in and turning stuff on? They seem to be very sensitive pieces of equipment from what I've read.
MS-2 has good bass with flats, but nothing you'd call loads. I like my Creative Aurvana Live! which is said to be similar tuning to D1000/D5000, though, so YMMV.
I just got my feet wet with electrostats, but I am finally hearing something that makes music reproduction sound effortless. That's as well as I can explain it, but these things are good. I'm afraid I'm getting pulled into the dark side. I would love to hear those sets myself.