iRobot.com offers the iRobot Roomba 4230 Scheduler Vacuum
with the Bonus Accessory Kit
for $329.99 with free
shipping. Apply coupon code "PSPORT" to drop it to $263.99
. With $4.64 for shipping, that's $30 under the lowest total price we could find for the robot alone. The Roomba 4230 features a scheduling remote, dirt sensors, cliff sensors so you can use it near stairs, and a non-marring bumper. It will also return to its charging station after its cleaning cycles. The Accessory Kit includes two virtual walls, filters, Roomba replenish kit, and cleaning tool.