Fire Bellies and Red-Eyes are fairly easy to breed, it is possible to breed Ceratophrys, but it is more difficult. With Bombina I think a slight winter cooling period will do just fine. I'm not sure to what temperature you drop them to, I can check this weekend, but i'm sure someone here knows. So basically, you just let the ambient temperature of their tank decrease and decrease the food availability a little, I don't think it's necessary to traditionally hibernate them. Then, after a couple months, increase the temperature again, and Voila!. As for Red-Eyes, they too are fairly commonly bred. They need a "dry" period, during this time the temperature may drop slightly, but not that much, they are still tropical frogs. Also, dry is all relative, they're still going to need moderate humidity. Then, to trigger breeding, you just increase the humidity and misting of the tank. The important thing with them is that they lay their eggs on vegetation overhanging water, they will also lay on the tank walls, as long as there is a body of water underneath.
Sorry it's not that specific, but I hope it helps.

Best
Alex