I picked up Dirge, Smokescreen, Silverstreak and Sideswipe. There's still plenty left for $20 each.
Dirge, Thundercracker, Rodimus Prime, Skids, Smokescreen, Silverstreak, Sideswipe, Tracks, Hoist, Grapple, Inferno and Jazz. The new Ricochet is there too, but not on sale.