good price on NUVI 760 ???

"Dont know if Nuvi 760 can run Oziexplorer though."

Hi - no it wont - you are limited to the firmware loaded (and any updates) and Garmin format maps. If greater versatility is required then a device running some form of windows mobile is worth considering. You then have the option of using a variety of gps mapping programs eg Garmin XT (so you can still use City Nav and oztopo etc), OziExplorerCe (uses raster format topo and geology maps plus airphoto images - including those sources from Google Earth) and Auto routing programs such as Destinator, Tom Tom, oute 66, Mio Map.

Nuvis also have limited ability to display coordinates in various formats/datums and record detailed tracks (depending on unit) which is a bit sad.

Cheers
Greg