Thanks everyone so much for all the advice, that really helps us out and gives me some hope.
Mr. Ron, no worries...We fly into Columbia Nov 15 and would like to start our trip from there, not have to get all the way down to Argentina to buy a bike. (Although all that information was good to know) Unfortunately I"m new to this site and apparently have to have posted 8 quotes until I'm allowed to PM anyone. but I am very interested in you're bike if you dont' mind PMing me some more info on it...where it's registered from? were you guys hoping to sell it down there or would you have to bring it back up into N America?
You're pictures are amazing by the way.
Thanks, Becky

Re: KLR In Columbia
 

Patrick,
Who is Jon? What kind of bike is it? Is it registered in Columbia? We won't be in columbia till Nov 15, if he's planning on selling it now he probably won't want to hold on to it for another 4 months? how long will he be down there?

Border Crossings
 

If there is a law about not being able to cross borders in Argentina with Argentinian Licence plates does anyone know regulations of any other countries in SA? we want to do a loop around the whole continent. If I have a bike registered in Columbia are we going to have problems exiting columbia and/or entering any other country? Is it easier to have forgein plates?

Hey Patrick,
no need for apologies, thats what the threads are here for. plus it gives me some info that i'll probably need to know anyways. but thanks for the warning. I'll check the link for the bike, sorry i didn't check that first.