Thanks for the info and replies!
Guess I'll be going with the herpstat.. I'll probably wait until my birthday (nothing makes a better gift than a new t-stat, right?) and just monitor the rheostats like a hawk until then.

One other question for you guys about the herpstat 2, I know it comes with 2 sensor probes, but how long are their cords and how long is the outlet cord (the one to plug the thermostat into the power source)?

Thanks so much again for taking the time to answer my questions! Hopefully my snakes will be much happier with a very consistant temperature... And I'll be happier not having to monitor their temps 24/7