New GPS from Sony
For under 2000EUR you could get your hands on these new Sony GPS models (in Japan for now of course) that display most of Tokyos streets in 3D. The
NVXYZ777 and the EX have a 6.5" WVGA 800x400 touchscreen, are MPEG1 and MPEG2 compatibile and can store audio files on it's 30GB HD (the EX can at least). Being that some of the streets are displayed in 3D, it must be easier to distinguish landmarks and such. Hopefully you can switch between 3D and 2D views.