The Surly Rolling Darryl rim. It's your platform for a big(ger) footprint.
Single wall construction, 82mm wide
For centered wheel building: alternate between rows of spoke holes, keeping the spokes from one side of the flange going to the row of spoke holes on the same side of the rim
Cutout versions save weight and show off your rimstrips
82mm rims on a Pugsley may require drivetrain modification to avoid chain rub on the tire in the lowest gears; Surly MWOD crankset recommended in this instance
For offset wheel building: choose one row of spoke holes and stick to it