I completely remodeled my home and all that is left is to complete a master bedroom bath, which has a jacuzzi tub with a 36" by 36" shower next to it which will be tiled, floor and all. I have done many bathroom tile jobs, but have never done a shower stall floor. I haven't found much help or info on the subject. The room is new construction, with just studs and subfloor. Any help?

I'm a contractor I highly recommend you hire a tile man
Should cost around 900 plus tile

Since you are looking for DIY info I imagine hiring a contractor is not what you want. You could consider a fiberglass floor pan made by Swanstone, Mustee or lasco, they run about $200 r you could try to mud your own floor with a membrane. Shower Floor Pans (http://www.dougstubs.com/Bathroom/____Showers/Shower_Floor_Pans.aspx)
How to Build a Shower Pan (http://hoagy.org/house/HowToBuildShowerPan.html) The first one is just a style of pre-made plans while the second should help you understand how to build your own. Building your own on site is not the easiest of first time DIY projects.

Since you are looking for DIY info I imagine hiring a contractor is not what you want. You could consider a fiberglass floor pan made by Swanstone, Mustee or lasco, they run about $200 or you could try to mud your own floor with a membrane. Shower Floor Pans (http://www.dougstubs.com/Bathroom/____Showers/Shower_Floor_Pans.aspx)
How to Build a Shower Pan (http://hoagy.org/house/HowToBuildShowerPan.html) The first one is just a style of pre-made plans while the second should help you understand how to build your own. Building your own on site is not the easiest of first time DIY projects.