The new Fostex TH-600 may be the new "Denon" that we can mod. It's still expensive, but nobody is going to buy a set of TH-900's and want to change out those gorgeous cups. But the TH-600 has some standard looking cups that many might be willing to upgrade to beautiful hardwood. At this price point it's like modding a set of Denon AH-D7000's. Very good news. I need to find a set nao!
Here's a sneak peak.