Well, I've got a 34" wide, 30" deep, 60" tall glass terrarium with screen top. The entire front, except for the bottom 12", opens out as a door for great access. Its at my parents house, so I'd have to bring it to my house to set it up. I'd rather use that than a tupperware tub.
I may try to put it on layaway and see how mad she gets. Maybe if I cancel our cable she'll be ok with it...
I actually just put 2 tons of organic mulch down in the backyard, and I've got several large pieces of driftwood back there that would look nice in a terrarium as well. I've got some bowls that would probably work for a water dish, and I've got a clamp lamp and 60w flood bulb that I used for a turtle I used to have.
I think I actually have everything to set it up, its mostly not wanting to piss of the fiance right now. Maybe if I do like $30 a week layaway...