I have been trying to find one for myself for over 3 months now. It seems no one wants to sell their M3 DCT cars. There are quite a few 6M E92 & 93 on autotrader, swapalease and leasetrader.
I will give it another few weeks and then place an ED on a 2010 M3 E90. The current lease rates are really bad and they do not have sales tax credits either which makes a huge difference for TX residents. I am kicking myself for not leasing one during the fire sale earlier this year. Let me know if you have any luck.