Do you have a spare room or is the table going to be in a living room? Ideally it should be as big as possible and the substrate should be deep as well....my substrate (Soil/sand) is about 10-11inches deep.
I have in my tables... apart from uvb/spot,water
plants
pots
stones
hides
Branches etc
Hope this helps and I am sure someone else will come along and add to the list ;o)