The secret, IMHO, is to use the Nestle receipe (or since, you are Boston, search out the recipe in Rosie's Bakery cookbook...seriously some of the best cookies I've ever had). For any of the receipes, replace the Nestle's chips with Ghirardelli (or other chocolate chips of comparable quality). Unbleached flour definitely.

And:
1. Bake the cookies on light colored baking sheets (dark colored sheets absorb heat and make edges burn)
2. Cover the cookie sheets with wax (or parchment) paper. You'll thank me later when you have to clean up
3. Watch the baking times and your oven temperatures. You want (well, I prefer) the cookies to be slightly undercooked in the center when you remove them from the oven (the center will not look cakey, like the edges do). This way, you'll have a little crisp on the edge, but soft smudgy interior. Yum.
4. Don't crowd the oven! If you are cooking multiple batches (sheets) at once, make sure there is at least a couple of inches clearance on all sides of your cookie sheet...so that the hot air can circulate. Otherwise, you can fry the bottom of your cookies, and the tops will be undercooked (yucky)
5. Once removing the cookie sheet from the oven, let the cookies set on the hot sheet for just a few minutes, then transfer to a metal rack to cool (so that the retained heat on the sheet doesn't keep baking the cookies). Metal rack is key so that the bottom cools without becoming soggy and falling apart.
6. If you reuse the cookie sheets for subsequent batches, scrape the sheets really well (or replace/shake out the parchment) so that you get rid of all crumbs. Residual crumbs will attach themselves to the next batch of cookies and burn like crazy.
7. Send a sample to all of us here to taste test for you.