KT,
I used C-Cure Pro Enhancing Sealer on the floor. C-Cure is the same company that made my thinset and also the grout I intend to use. They're based out of Seal Beach, CA.
Jay,
Thanks for the vote of confidence. Coming from a craftsman such as you, it really means a lot. I really can't believe how this floor is turning out. As I mentioned earlier, the colors and the textures are just jumping off the tiles since I've applied the sealer.
Just applied the second coat this evening and it's developing quite a shine to it.
Randy