Diablo Sport Predator or Trinity?

I currently have a BWoody CAI, Jet 180 T-stat, and BT Catch can on the way. Ultimately, I am going to pick up the Borla S exhaust but am waiting to install the other stuff first.

I have read the "vs" thread and still am unclear on a couple of things.

I see a lot of folks here have had great success with the Predator. What tune do I need to purchase with it if I go this route? CMR?

Should I just go the way of the Trinity for a bit more in $$$? If I have it clear, the CMR tune will cost almost as much as the Predator, correct?

The Trinity is roughly $570... Does this price include everything I need to open up the SRT8?

Edumacate me! :D