Reptiles Magazine can be bought at most chain pet shops, they are pretty good too.
I think dubia don't really care about red light, even if they can see it. They'll breed regardless. Most zoos with roach displays use red light and they seem to do well, so I don't think that's too much of an issue. Though I wouldn't use red light at night for reptiles unless that's all I had.
I would recommend ceramic heat emitters instead of red lights. They last longer too, so they end up being cheaper. Use a dimmer (costs about 10$) to keep it at the desired temps.
I have tried heat pads, but after almost 5 years of constant use, they bugger up and over-heat. After I found a bunch of dead roaches one day and warped plastic, I figured maybe heat pads weren't a safe approach...(I've also known many others who have had bad experiences like this with heat pads, and I never recommend them unless you've got a thermostat or something to control it.)
As far as heat tape, I hope those of you know that since you usually have to rig it up yourself, it is not covered in most Insurance packages if there is a fire.
ANYWAYS..what I do now is have a space heater set up under a wood shelf. It is on concrete, against a concrete wall in a storage room. I've enclosed the space by hanging some sheets, but in time I will build it into a little room with some plywood or something. The space heater heats the shelf the roaches are on, and because there is a little downwards-lip on it, the heat gets trapped and keeps it at about 90-100F.
Works great for me, uses a decent amount of energy though, but in my opinion it is the safest way to go about it.
I would strongly advise against using heat pads, especially 24/7 for long term.
If you do, get a thermostat or dimmer.