These questions have been answered many times; I think we need to develop a sticky.
The CS HEB (DPA 406x) are excellent mics. I've got a few friend who use them and get some stellar recordings in the right scenarios (all mics have this opportunity - I've won some, and I've lost some).
Some background from me.... I've owned the CS Binaurals back in the early-to-mid '90s when I had a Sony TCD-D7 portable DAT deck. At that time, there was nothing in the price range that touched them. A lot has changed in 15 years. When I became a little more serious in taping in the early 2000's, I had bought the Giant Squid Audio Lab omni mics. People here dog them but I did make some excellent recordings with my old Sharp MD. In fact, a few of them were that good that they ended up being pressed on silver CDs (without my knowledge or approval). I then moved to Sound Pro CMC8's (Audio Technica 933 cardioids). They weren't bad. I sold the and run all things Chris Church in my rig.
Back to the topic at hand... As acidjack has already mentioned, anything CS and Cardoid should be avoided; they're pretty craptastic and overpriced for that matter (sorry Len if you're reading this). The CS Binaurals are decent but you could likely pick up both CA-14 omnis, cards and a pre and/or a cheap battery box for about the same as the CS option. I run the CA-14 omnis, cards and the CAFS (freakin' small) omnis for when I need to be a little less obvious. I also have Chris' "ugly" battery box which is the smallest battery box he makes (essentially a 9V clasp compounded with a mini-jack connector on the end. For all of this, I've spent around US$400. This gives me the option of using cards or omnis depending on the situation (indoors, outdoors, close, far away) or using the smaller mics if I need to. It also gives me a pre-amp which is a much nicer tool to have instead of just using a "battery box" as I can adjust the levels on that rather then on my deck (in most cases). So, given the option of CS vs CA at this price point, I'd take the CA option. Yes, you may have to wait a little longer to get your goods but Chris really stands behind what he sells.
Now, you've thrown the CS HEB's into the mix. I've said this before (and Ill say it again) but at $1000, I don't know if they're really worth it if you look at it from an economic standpoint. If you've got a battery box and a CA-14 omni (approximate retail < $200> you're not gonna end up with a recording that's 5x better (i.e., $1000 vs. $200). You get to gloat that you have the mics but I know enough tapers out there who use other mics and leave their DPA's at home to collect dust.
Hopefully this has helped a bit.