I live in an older house and just had all the AC duct redone under the house. It now cools much better than before. I'd like to buy a new wall thermostat that I could program to come on at a certain time and turn off later. I've seen Honeywell and Lux on some other sites. Just wondering what you would recommend? Nothing fancy. Just on at X time and off at Y time. Also, how much do they typically cost?