Welcome to IRV2.....First off you have to know what your tow vehicle will safely tow. Not what the dealership says you can tow. In my scope of things I like to stay no more than 75% of what my tow vehicle is rated for. We do like to camp in the hills of Ohio, Western PA, NY, VT. As an example: My trailer weighs in at 3900 lbs empty. And I would say loaded I'm about 4400 lbs. My tow vehicle is rated at 7500 lbs. You also have to look at hitch weights. Two trailers of the same length can have very different hitch weights. That is one thing I like about the model of Aerolite Cub (Hybrid)we bought is that it had a 315 lb. dry hitch weight. Others of the same size were pushing 600 lbs. Before our current Hybrid trailer we had a 99' Coleman pop-up.
The next thing to think about before buying a trailer is the lay-out and size. I have seen so many trailers with zero counter place. You have to really think about where you are going to place your clothes, extra food, toys, extra shoes, coats, tools, lawn chairs, firewood, bikes, fishing poles, cleaning supplies and more. If you are going in the direction of a pop-up you will want to get a model with the front storage trunk. Trust me...In there you will keep stuff like tools, lawn chairs, grill, firewood, tarps, wheel chokes, toys. This way all these things stay out of the doorway / floor area when setting up and taking down the pop-up. I also had a few Rubbermaid containers with " this & that" items. You also have to look at inside storage cabinets and what size are they. Some models have very odd-ball cabinets that are not very user-friendly.
In 05' we were going to buy another Coleman pop-up (larger size) But once we saw the Aerolite Cub Hybrids and all the cabinet and counter space, I'm so glad we spent a little more and went with the 24' Cub. I have 25 cabinet doors and about 9' of total counter space. Withtake many cabinets things inside are neat and easy to get to. We have everything we need and extras of most supplies. With 2 kids you will be hunting for every sq. inch of counter and cabinet space. In the mornings you might have the toaster, coffee pot, bowls, plates and what ever else on the counter......If you have 2 young sons right now a pop-up or a hybrid will make sense with the 2 queen beds on either side. We used our pop-up 225 nights over 6 seasons. In our 05' Cub we average 50-60 nights a season. I sure enjoy our Cub when the weather is bad outside because I'll lay on the couch and read the paper or watch the TV. My son will be at the table playing his video game and my wife will be in the back bed reading her book. 05' Cub
Good luck.....RVing is fun....we tent camped for 15 years before we bought a trailer. Wish we would have bought one earlier......even if it was used.......any more ?'s just let-um rip....