If you get cardioid's, the AT831s that were mentioned are probably a lot better sounding than the CMC-19's. Look at that frequency spec on the CMC-19's... 80 - 18,000 Hz, most good mics go down to 20hz. 30 or 40 hz is fine, but not 80.
The same AT-831's that Chris is selling make up the CMC-2
http://www.soundprofessionals.com/cgi-bin/gold/item/SP-CMC-2 They sell them for $159, Chris sells them for less than half that (because he picked up a deal on capsules). Plus the frequency range is 40-20,000 Hz. Much better. It's a no brainer, if you want cards.
Listen to some samples of Binaurals and AT-831s on archive.org and decide for yourself.