What do you tow the bigger 5ers with?

Thanks for all the great input so far! I would likely be going used at just a couple years old model years 12 to 14 as I cannot see spending 55 to 60k or more on a truck that I will only put 10k a year on it. I have seen alot of F350 for 40 to 45k with average of 40k miles on them both srw and drw about the same $$$. Just a hard decision to make as I want to keep this truck the next 7 or 8 years and a 15k GVWR trailer would be the biggest I would go in those years as I am only in my late 30's with a family but dont travel enough yet to warrant a 20k GVWR trailer maybe when me and the wife retire 20 some years from now :) Could everyone please tell me their payloads with the trucks they have? Some already have just trying to get more of an idea. Seems like the GM and Ram 3500's have more SRW payload than the fords do!

Thanks again everyone!!