Anyone can tell me to bugger off if they don't like my advice, but as I've done a 55 gal Vertical conversion as my first build, and a 90 gallon vertical from scratch as my current project, I'll pass on what I've learned, please correct me if wrong.
As far as heating, it depends on what you're planning to house in there and what kind of layout you're planning(water feature?)
I believe most frogs can get by with just ambient temperatures and don't really need to bask. If I'm wrong(especially with regard to Red-Eyed Leaf Frog), please someone correct me, I'll need to fix my current tanks.
If all you need is a controlled ambient temp and you have a water feature, you can heat the water with an aquarium heater and solve two things, heat and humidity. the largest thermal mass in your tank is the water and the glass of the tank, the glass acts as a heat sink though, so if you can, cover it. Place the tank on a thin sheet of Styrofoam 1/4 inch(thicker the better) pink board used in construction works great, place it on the back too if it is hidden. It will help save electricity.
Trial and error may be needed to get the water heater right to get the target air temp. and the more water running the more humidity pumped into the air.
I would and do still mist the terrarium to get water droplets on everything (distilled water to prevent glass spots)
I did a 55 gallon vertical conversion that was more so "I bought the tank because it was cheaper than buying the individual sheets of glass" If you want to cut the silicone and remove sides, build doors, place a screen top...
look here
http://www.frogforum.net/vivarium-te...m-project.html
the missing pictures are in my 'grandfather clock' album. I'll warn you, the tank warranty was voided as soon as I looked at it in Petco.
Lighting something that tall depends on your critters being kept in there. RETFs like to sleep near the top, so your jungle uv bulb doesnt need to reach far to be useful during day light, a single 18inch would probably work. plants need light at all levels and LED gets in there deep. I tried using gangs of 2-4 18inch florescents at the top and they get about half way down before too many shadows and dark spots.
LED Aquarium Lighting for Aquatic Plants | Marineland
I have the 24-36 model of this and it gets to the bottom of the tank Like mad. Plants are growing wicked fast now. It lights up my whole living room brighter than my lamps can. I have the one with the built in timer which makes it super handy, just annoying that youll need to reprogram it everytime it looses power. save some money by shopping craigslist or ebay if you choose this route.
when you start building the insides,
http://www.frogforum.net/vivarium-te...aludarium.html
Thats a great place to learn.
please tell us what you plan on housing as some advice may change.