I recently purchased a whole turkey breast on the bone for $0.99/lb at the local grocery store. I think it was about 5 lbs. It was previously injected with a "7% solution" of chicken broth and who knows what else so I didn't feel brining was needed.
I made a rub out of paprika, garlic powder, salt, pepper a little dark brown sugar and oregano
I rubbed it and put it into the MES at 275. Didn't use a lot of wood since I only wanted a hint of smoke
4 hrs later it was just hitting 168 and was pulled and rested. Made a nice dinner out of one half and put the other half in the frige for sandwiches through out the week. Once cooled it was easy to slice as then as I like.