Hi A., I have the radio flyer pathfinder wagon. It is a regular wagon, where the bottom of the wagon folds up to become the backs of the seats. My kids are almost 4 and almost two and they love this wagon. i bought it about 5mnths ago from walmart. I am attaching a link, you will have to copy and paste it though! I hope this helps you. they have one like this only it has a sunroof/cnopy thing to it. I thought about that one too, it was just a little to expensive for mw at the time. They also have little clip on umbrella things on the radio flyer website that you can purchase for the wagon also. I first thought it was going to be tough to pull 60 pounds worth of children but it is so smooth that i take it out almost everyday around the block. It has seat belts, cup holders, an extra long handle that folds under for storage, it has a great storage area when the backs of the seats are folded down. Its good for ages 2-8, but like i said i have my 1 year old in it as long as they are buckled in, i have even taken my neighbor who is 12mnths in it. Agian, I love this wagon, it is made so well, that it will last forever!
There is also another one i was considering, Step 2 wagon for 2 plus. I liked this one because you could buy a little hauler type thing to go with it. But what stopped me was the age limit of it, it held only ages 2-5. I wanted my wagon to last awhile longer than that. Here is link for this one just in case.
and this is for the hauling thing:
Hope all this helps in your decision! C.