I recently got the DS Lite and am in love with it! So I will be looking for games this year.
As far as the Wii, Nintendo is not taking pre-orders for it. My hubbie had one pre-ordered through GameStop and had it cancelled last week. The ones that had pre-ordered a Wii prior to last week are getting them, and those that want to pre-order them now are out of luck. Nintendo is saying that there will be no problem getting your hands on a Wii this holiday season.