You get the maps on CD or DVD when you buy the unit. After installing the mapsource software to your PC you can transfer the maps for the areas you need to the unit's built in memory. An alternative to the quest would be the Garmin 2610. These have been discontinued now and the last ones are being sold for silly money - as little as £190 in the UK. It's a slightly bigger unit, but the screens better and you can use standard CF card memory, rather than being restricted by the size of the internal memory.