I've been reading posts for several days. I am soooo confused.

I hope some of you experienced orchid geeks can help me sort it out.
I am planning to get a couple small Cattleyas. I will be keeping them indoors where I can control the temperature, light, and humidity. So, here's my general question:
If you were going to supply the ideal environment for some young Cattleyas, what would you do?
What temperatures?
What humidities?
How much light?
What potting media (in a plastic pot with slits up the side)?
What fertilizer, and at what concentration?
Would you let it completely dry out before watering again?
What other things would you do that I'm not thinking about?
Thank you for all your suggestions. I just want my first orchids to have a happy home.