The Air Cage Air Compressor ($139.99) has a unique design that stores compressed air in the frame rather than n a bulky, vulnerable air tank. Its Armor-Dipped coating reduces noise, heat and rust and prevents metal-to-metal contact with surroundings such as truck beds. The oil-free pump generates 5.1 cfm at 40 psi and 4.1 cfm at 90 psi. The compressor tops out at 2 hp and 125 psi. It weighs 47 pounds and comes with a one-year warranty. Alltrade Inc., (310) 522-9008, www.powerbuilttools.com