Pecor Electronic Battle MapSean Pecor decided not to wait for surface computing and built an electronic battle map of his own design. Total cost, including projector: $782.66.

Now before all the gadget and AV geeks get up in arms, yes, he did consider projecting from below. Placing the projector above the table, though, achieves a brighter result and is much more portable. Sean brings the rig with him when playing at his local game store.