Good call. Trailing failures don't end well. The right hitch will go a long way to reducing risk.
The hitch on my Titan (from the factory) is rated for 10K lbs. The Titan itself is limited to 9,200 lbs for an '07 LE CC 4x4.
You're going to need a weight distributing hitch (shank and bars) to tow that much weight. This isn't a should have. It is a must have.