Here are some pictures of a Spoon Roast (I think it was...) cooked in the Weber Smokey Mtn. smoker at oven temp (350) until med-rare.
One of the nice things about cooking lean roasts at oven temps is it only takes 1-2 hours, depending upon the weight.
Getting the smoker read - don't need much smoke wood for an oven temp cook. The gizmo sticking out the bottom is a BBQ Guru draft control that insures controlled pit temp at whatever temp you want, and the meat probe notifies you with an alarm when it reaches whatever meat temp you want.

The roast on the rack with the temp probe in it, ready to close up

On the carving board. Note that this side of the roast was rarer than normal but the other end was fine...

Yum!