I've been using the CK7 since September last year; and while the sound signature has grown on me, I am looking for something with a smoother presentation. The CK7 have brilliant highs, but I find that most of the time, its presentation is razor sharp is essentially quite harsh for some songs. I'd also like a bit more bass. While the CK7's bass has quick attack and decay, I'd like deeper and more involving bass, but doesn't hit the basshead line.
Looking at the Fischer-Audio DBA-02 has caught my attention, but it doesn't seem to be in stock anywhere. There seems to be favour around H-F for the Earsonics SM3 against the Westone UM3x. That said, if I were to import a pair of the SM3s, they would be more expensive than a pair of UM3x from eBay.
I use a Cowon D2+ as my primary source (flat, no BBE+) with an iPod Classic 6G and HTC Desire as secondary sources. That said, my current setup can make me feel a little claustrophobic at times because the soundstage is quite small using CK7.