I really like Artec, and I actually rode the Cipher for the better part of last season. It is a great all around park deck, true twin and a lot of stability for big jumps and speed.
Artec Snowboards Cipher Snowboard - Wide from Departmentofgoods.com
I suggest getting the wide version, and if you want to save some money here is last year's model. At your size I suggest the 156.5 Wide.