Navigation Systems?

Hi all. I'm about to lease a 2003 4-Runner in Canada and have seen photos of them equiped with a Navigation System. I do not see it anywhere in the brochure as a listed option. Does anyone know if it is availlable here in Canada as an option, and if so, how much it costs?

Also, can anyone recommend a portable GPS that is adaptable for a vehicle?

Any feedback would be greatly appreciated.

Thanks.

its actually not in the brochures. when i went to the toyota dealership, the brochures they had made were for the vehicles that didnt have navagation system on it yet, i think you can find out on toyota.com on the cost of it.