I believe it would be a better idea to go the Herpstat 2 way! If all the heat pads are going to be the same heat, then you only need one T-stat to control all of them, and the same goes for the heat lamp.. Herpstats and Helix sound like they are both really good. I have a herpstat 2, so I know that they are good,once you know how to work it properly lol. I also know people that use Helix and say they are good. The cheaper way would be the herpstat 2, because it has so many functions built in! The Helix, which you would have to buy 2 of, is already more than the herpstat 2, and it requires you to buy extras for night drop. But, it has a big clear display screen so you don't have to squint at it like with the herpstat.. I would go with a Herpstat 2, just my opinion. I believe you can order them right online from Spyderrobotics.com!