What da King said: My usual recipe is 3-speed hub, alloy rim, stainless spokes. Main issue to deal with is the change in rear spacing as Sturmey Archer AW hubs are 110-115mm locknut to locknut. You can get a longer axle and use washers/spacers to make up the space you need for a 120 to 126mm rear dropout or you can cold set the rear triangle to fit the SA hub.
Neal