Plumbing for my new bathroom is almost done. Insulating should go quickly. So, I'm on to thinking about the tile. The shower is 3x4', no tub; tile will probably go to the ceiling. I'll be making a mud bed. What waterproofing system do you guys recommend for a novice? I'd planned on Kerdi, after reading John Bridge's forum. Now I'm not so sure. Our local tile supplier sells Hydroment and Gold Plus. I've heard of RedGard, too.

I've tiled a couple rooms, but never a bathroom. Which system is the best bet for a novice?