If you do a lot of SMD soldering, a reflow oven is the ... built a small PCB to regulate the oven, which features an ATmega32u4 and thermocouple to keep the temperature in check.

With reflow soldering, sometimes close is good enough. At the end of the day, the home gamer really just needs a hot plate or an old toaster oven and a calibrated Mark I eyeball to get decent results.