what is the best way to texture the ceiling in just one room?

[fishinpox]

We do a slick finish on all walls and ceilings of the houses I build. They thin down sheetrock mud , roll it on and use a wide blade to wipe the majority off leaving about 1/16" of mud on the wall , then they sand it . It is called a level 5 finish .

But Most builders in Baton Rouge do a level 3 finish with a very fine orange peel texture .