I know some of you guys have this particular unit, so I have a few questions. And Garmin's site hates my computer. So pardon the n00bishness. 
Right now I have the Metroguide N/A v8 DVD. Will this be compatible? Also, what are you using for topo software?
Thanks
-Lane

Right now I have the Metroguide N/A v8 DVD. Will this be compatible? Also, what are you using for topo software?
Thanks
-Lane