I am looking to enhance an ugly concrete walkway/front porch with stone of some sort. My first instinct was flagstone peices because we like the larger, random looking stones. We can also get it locally with ease. I'm open to suggestions, though. My plan was to first sink some treated 1 x 6's along both sides the length of the walk, leaving 1" - 1.5" exposed to serve as the barrier to hold everything in, there are flower beds on both sides of the walk. Some sort of sand base (bank sand maybe?), tamped down compact and level, then the stones. I wanted to go over it with some masonry cement to permanently secure everything. I want this to be a 100% DIY job. I know how to cut and handle stone. I guess my main question is what are the proper base materials for the job. Is my choice of sand for the base the correct one? Thanks guys.