Your plan sound acceptable for a slab on grade project. What you are basically doing by following Ted's advice is creating a "sill beam," out of PT and masonry. Finish motif is the same as if a solid wood sill beam was employed, depending on your wall and bent configuration.
As for posting pictures, that can be a bit tricky. First the photo must be somewhere on the 'web,' Second, you are going to find an 'icon' (4th one in from the left just past the envelope.)Third you will see insert instructions, pick one. Then a request to, "Enter the complete URL for the image you wish to display." Do that and hit enter.
Regards,
jay
Last edited by Jay White Cloud; 08/08/13 12:02 AM.