CONGRATS!!!
Bill thanks for the altitude info, I'd agree that there is a noticeable difference at elevation in my limited experiences.
You'll love the Tundra, I looked at that before buying my Dodge. It's well laid out, nice power, good design overall IMHO. Only downside was the price. At the time I was looking Toyota was only willing to bend so much on bottom line/financing and well Dodge was more than willing to work on price/ 0% interest...of course that was when they were being sold off to Fiat, but that's another story
I wasn't crazy about the Ford, but go with what feels best for you. there has been discussions on towing capacity/TV with many differing opinions. I personally like the full size truck for versatility and the gas mileage is similar to the smaller TV's. Without a trailer I usually get 18 - 20mpg on the highway. in the low teens with the trailmanor on grades.
either way, Enjoy!
Jim