Lowe's offers the Porter Cable 18-volt Cordless 4-Tool Combo Kit, model no. PCCK405N4, for $99.98. Coupon code "470000RRRR2997R" drops it to $89.98. Opt for in-store pickup to avoid the $79 delivery charge. That's the lowest total price we could find by $10, with most vendors charging $130 or more. It includes a circular saw, drill/driver, reciprocating saw, flashlight, double-ended screw driving bit, 6-1/2" circular saw blade, 6" wood cutting blade, and 2 nickel cadmium batteries with charger.

Update: It's now available with free shipping.