Some questions about vivarium growing...

[JKeys]

Okay. So, I am getting an addition to my house and I am getting my whole bedroom to myself. I will use this extra space to make more room for growing orchids! I really love the idea and concept of growing orchids in a terrarium, however, I dont really know anything about it. I am looking for experienced terrarium growers to share their favorite terrarium orchids, type of terrarium, what lights, humidifiers, or anything else they use, and also what materials to grow the orchids on and what other plants might thrive inside the terrariums. Is there any certain type of maintenance that needs to be done?

Oh, and also (not to be rude) the expenses of running the terrarium would be a plus. (please don't say if you don't feel comfortable with it)

Thank you guys so much!