I can't say what is really best but I use a 50 (maybe 60?) watt ceramic bulb to heat my enclosure from the top in one corner. I also have a false bottom which has a heater underneath and that seems to produce heat and humidity.. my tank is usually 78F and 60% humidity and I don't need to mist.
100 watt is probably way to strong, get a 60 watt tops. Also I'd get a ceramic bulb for heat, the regular bulbs die really fast and the ceramic ones cost more, but last a ton longer..
As far as lights, I use a LED strip, I think most any would do for growing plants.