Orchidarium first-timer! Please help me pick the right lighting!!!

[Miadunn]

Hey guys! I am in need of some advice to light the Orchid box that my boyfriend made me for Christmas! (I've got a keeper) The box is made out of glass and has the measurements of 20"l x 20"w x30"h. It has sliding glass doors and a two inch opening at the top back of the box.

Right now I will just be using this for growing Phals in my house since they don't really like the temp and humidity in our house. I am a little confused on how to start my setup so I figured I'd start with lighting. From what I've read, the fluorescent fixtures seem to be the most popular. T5 or T8 seems to be the best option with a mix of 3000k and 6400k.

Will all the bulbs be labelled this way or do I have something else I should look for when buying these? Also, if I get a 2' fixture will 2 bulbs be enough for my dimensions? Also would it be an issue if I don't hang this above the case and just lay it on top? I don't have a lot of room in my dining room to suspend any lights...

If I decide to go with this is there a preferred place to buy these or will a place like Lowes carry these?

I saw this place but if I could buy it locally then that would be great...

http://www.htgsupply.com/Product-GrowBright-2-Foot-2-Lamp-High-Output-T5-With-Choice-of-Bulbs.asp#

Thanks so much!