I just did a Chuck Roast last week. It was a small one. maybe 1.5-2.0 pounds.
I brined it with a modified version of Tony's butt brine. I basically just added two TBSPs Weber Steak & Chop seasoning to the brine. This was also the seasoning that I rubbed the roast with.
I smoked it with some mesquite to 150 and then pulled, foiled and rested for an hour.
I had a foil pan under the roast in hopes of getting some drippings for Au Jus. But surprisingly, I did not get any drippings. So I just made an off the shelf Au Jus with some Johnny Seasoning French Dip Au Jus concentrate and then added some of the drippings from the resting foil.
Johnny Seasoning French Dip Au Jus
http://www.amazon.com/Johnnys-French-Concentrated-Sauce-8-Ounce/dp/B000H25UVKSliced the roast thin and made some sandwiches with sub buns and dunked in the Au Jus (French Dip style).
Sorry, I forgot pics, but it turned out awesome!
Normally, I would prefer a sirloin roast for this, but I pulled this roast out of the bottom of my freezer to get it used.