Thanks for the comments. Please understand my knowledge of transmissions and torque converters is limited and some of the stuff I've read is overwhelming.
I just know I've got to make some changes to bring the towing temps down and from everything I've read in the past, changing out to a good quality billet torque converter is the answer. I will not be doing the work myself obviously so I have to make sure I'm getting good advice from my local transmission shop. Again, the cost between a single clutch and triple clutch converter is about $500. To me the theory behind the triple clutch makes it sound much more efficient.
What concerns me is that I have found stories of the triple clutch converters shifting much more harsh and aggressive. While I want a good positive shift and lockup, I don't want it to get too violent for everyday driving.