The latest trailer for the rapidly approaching Animal Crossing: City Folk offers a look at the process of migrating your DS Animal Crossing: Wild World character into City Folk. You may not be able to keep your house or your possessions, but migration allows you to maintain your character's appearance and Tom Nook shop catalog. If you want, you could probably recreate your DS house as soon as you got the money.
Head to the link for a second, longer trailer which shows the DS-Wii move in more detail, including the specific steps for moving your character.
