Gamestop/EB Games has Donkey Kong Jungle Beat on sale for a dirt cheap $9.99 with 2nd Set of Bongos FREE! both online and in-store.  We saw a ton of these in stock.  This Game Cube game works great on the Wii and the pounding and clapping with the included bongo is a great workout for you arms.

Donkey Kong Jungle Beat only supports a single Bongo controller.  So what do you do with the second one.  Order Donkey Konga 2 for $13.99 (with free shipping) at Deep Discount DVD.  Donkey Konga supports multiple bongos.  With so few games available for the new Wii system this seems like a great deal and lots of fun to play.  And Donkey Kong Jungle Beat with the bongos has given WorkoutWithWii staffers a better arm workout than Wii Sports.

Update 12/28/06: According to CAG , Toys R Us has Donkey Konga 2 on sale for $9.99 if you can find a copy in-store.