cometcrazie737

I just got a vista Cx. I'm looking at upgrading so I can use it for street navigation and topo maps. My problem is that I don't want to spend a lot of money. I don't mind taking the card out after I drive to the trail to start caching but will that mess me up? Should I buy CN on micro sd and then get the topo dvd? Or do it the other way around? Or some other combo? What happens if I get a 2g card? What is the advantage? I haven't even gotten started yet so I don't know anything. This is all a little confusing.

I'm looking to buy CN. I just ordered a Vista Cx on eBay and want to use the turn by turn feature. Do i need the DVD and the data card. I found a guy selling just the data card and no DVD. Is that a rip off? I have no idea how it will work. Thanks