The cage I have is the Coast Cage Ritz Rat Condo. It's a little on the small side, but if you put up enough hammocks, and move the bottom ladder to create another shelf instead, it's okay provided they get lots of out time.
The main reason why I chose it is because I needed mobility in my cage, going to and from school several times a year. You mentioned "at my dad's house," so I thought mobility might be something you want in a cage, too. This is light, pretty easy to clean and decorate (the whole top half just lifts off, but can be clipped down, it's super easy. Though it's no FN, I'm sure), and strudy since it's all one piece. You can't have more than two girls, and you're going to have to be smart about how you decorate, but it works pretty well. And it's not even that expensive, $55 from the website, and they have free shipping.
Also, the wheel is solid now. I was going to take it out, since it's a little inconveniently placed, but now they're using it, so I don't regret the wheel too much.