free GPS maps - but whats the best way?

[HangOver]

I have a copy of Ozi Map Grabber which works great but I would like to grab a LOT of maps in one go, like say WA.

It asks for longtitude & latitude then however many maps you want north & west. eg 10 north x 10 east returns 100 maps.


How can I get the cordinates for say esperance ?
How can I work out how many maps north & west I need to grab for WA?



**edit OK I have coordinates what about number of maps?
Esperance 33.45 S121.55E
hmmm that doesn't work it needs a "Centre Latitude"?

[kaa45]

Try http://www.gpsaustralia.net/