ok, called them up and they only charge $6/sample and each sample needs 2cups of dirt. I think I'm gonna do all three separate areas in my front yard.
I asked them what they test for and they said it depends on what I want to plant exactly so I guess I'll see what they say for bermuda and/or st. augustine. will get them to do insect tests (if possible) and disease tests (mold, fungus) if possible.
great part is they are not to far out of the way on my way to/from work yay! they said it takes about 2 weeks for results though so it probably wont be until mid november that I post since I'll just be heading out for my honeymoon when the results come out mostly likely.