The fact that you are doing a potted/planted terrarium instead of a planted kind and the fact that you understand that different plants have different needs tells me that at least you are on the right track. Too many people go right into a planted terrarium without understanding the level of difficulty and care involved. A potted/planted terrarium will make your life a lot easier without giving you the bare tank look. I would suggest that you use fluorescent lighting of some kind instead of the incandescent "grow lights" that throw off more heat than light.
Overall, I think you are off to a great start. But great starts are just that, starts. Keep reading; there's more to learn than you can possibly imagine.