I'm planning to get my first snake (ball python ^_^) in a couple weeks and now am getting ready to set up its cage. I was wondering if a "Zoo Med 10 to 20 Gallon Heat Pad" will suffice in heating a 20g long glass tank by itself without a lamp. My usual roomtemp is around 75-85 in summer, maybe 65ish in winter. I live in Connecticut if that makes a difference. If it isn't, what about two, one on either side. One set on a higher temp for the hot side, the other set lower for the cooler side?

Also can you guys tell me your opinions on these products im thinking of getting?
"Alife 1000 watt electronic thermostat with probe"
"Zilla Digital Thermometer / Hygrometer with probe"


And um.. I know I had a few more questions but im completely blanking out right now.

Thanks for any help!