Do not buy marker Dukes, you weigh 135 for God's sake and those bindings cost a fortune. You can put any durable 12 DIN binding on those skis and they will perform just fine. Just because they are pow skis doesn't mean you automatically need a 16 DIN binding that you ride at 8, so don't listen to the 100 people who are going to tell you to get them.
I recommend these since I have used them most recently:
-Salomon STH
-Deadbolts, Mojos, etc. (the new ones, not the Vist ones)
-FKS 12 (15 is a good one too because the DIN goes as low as 6 and they release differently. The 15 doesn't have vertical toe release and the toe is a metal bombshell. Your choice there, but as stated above, you probably don't need 15's)
-Rossi SAS style bindings are great in my experience, but lots of people don't like them so look into it first.
-Barons are the less beefy version of the Duke if you need a touring binding.