I'll second everything Luvyna said and toss in another recommendation for a two-probe thermostat.
For what it's worth, I went straight to Herpstat and now have both a 1 and a 2. Both units are easy to use and reliable. I'm very glad I splurged and put down the money for them. They both have dimming, pulse, and night drop functions, as well as some nice safety features. I'll probably be using Herpstats exclusively going forward and I'll recommend them to anyone in a heartbeat.