I know a lot of people have weighed in and it sounds like you've made up your mind, but I'll throw in my two cents as well. I have 3 kids, ages 5, 3, and almost one. I recently traded in my 2006 Tacoma Double Cab short-bed for a 1st gen Tundra Double Cab. The ONLY reason I did it initially was the extra width of the back seat. Now all the kids can fit in there legally/comfortably (5 year old is in a booster, 3 year old in a front-facing seat, and the little guy in a rear-facing toddler seat). I've only had it for a little while, got a sweet deal on it, but it has me liking it more and more all the time. The overall size of the Tundra is not much bigger than the Tacoma...it's like it is Goldilocks-certified (just right). The gas mileage is similar, the size of the bed on the Tundra is longer & deeper and all metal (as opposed to composite inside on the Taco), with greater towing capacity and cargo capacity. And man, that V8 is SMOOOOOOTH! Like previously mentioned, the aftermarket is nowhere near as plentiful as with the Taco, but the important stuff is there to find. My only other suggestions would be the Land Cruiser (100 series), the 1st gen Sequoia, or the Taco Double Cab (if your kids fit comfortably). Test drive them all and then choose. Good luck.