I want to echo pkoh's impressions of the Thiel CS3.7. I purchased a pair around 5 months ago. I compared them to Dynaudio Anniversary Saphires (which were too clinical and restrained for my taste) and CS7.2's (fantastic speakers, but not quite as smooth in the top end and somewhat less musical).
The CS3.7's are truly unlike any other Thiel in that they are extraordinarily articulate without being harsh or etched. However, two things are important to note: many people don't allow them their 500 hour break in and sell them prematurely. Out of the box, they are absolutely wretched...shrill and painful. Second, you'll need high quality equipment throughout your system because they are stone cold truth tellers. I auditioned numerous preamps before I found one of sufficient quality. Got a crappy cdp? They'll shine a light on it. The good news is that they will throw a sound stage and produce imaging you cannot touch in the $13K price range. For those who say they skimp on bass, I suspect that's due to deficient front end components. Several friends who listened to my set up recently couldn't stop commenting on how deep the bass was and how much "slam" these speakers have.
You've gotta be willing to handle the truth about your gear if wanna own these speakers....which is not to say that they don't sound good with reasonably priced equipment...your equipment just has to be well made and musical. Thiel CS3.7's are incredibly emotional, complex and rewarding speakers that reflect world-class design and engineering, but they are not for everyone.