The heat pad method that they described works well. Only thing is, you have to go buy a bunch of extra stuff.

Heat lamps are OK to use as long as you do something else to compensate for the humidity issues related to using them. Here's the first tank I ever set up for a ball python:


You will still need to mist the cage daily, and there are few things that plastic wrap and duct tape won't fix. Spend some time with it and make it look nice, this method will save you some money. Just make sure that you have the appropriate wattage bulb in infared trim, so you can leave it on 24/7. I never had any problems with this setup.