So, after reading various experiences in this thread, I bought a pair of ATH-CKS77LTD's on eBay from a Hong-Kong based seller. It arrived today.
First, these things are gorgeous. Loving the metallic red. They're much bigger than what I'm used to, and I have to say I find that a little uncomfortable, but I could get used to that if the sound is as good as I read. I gave them a quick first listen, and they're clearly in need of some burn-in, but the lows sounded very good. And, wow, these things are absolute bass-cannons.
Sadly, I quickly discovered there's something loose inside the left earphone. It's very easy to hear when I shake it, sometimes even when I take it out of my ear. I'm not sure how worried I should be about this. Just in case, I contacted the seller asking if I could get it replaced, if it does turn out to be a problem...