good call on the Ikea commercial, Moskie
the two current ones that i find hilarious are:
(1) The Bacardi and Cola guys
(2) The grapermelon gum commercial (in the office, people bust out of a file cabinet, window, and water cooler to get the gum)
they aren't the most genius commercials ever written, but the deliveries by the actors (especially the deadpan Bacardi and Cola guys) are perfect.