March of 2011 my friend Justin and me will begin our journey through the states. We will be driving our motorcycles through parts of North America until the end of the summer. Around August/September we will begin our trip through mexico and as far south as Argentina. We will be traveling by motorcycles, packed with camping gear and essentials. We are a little concerned about Mexico and South america. We have heard good but mostly bad things of traveling through these areas. We speak some spanish and have both been to tourist areas of Mexico but have no experience in other parts of Mexico. Does anyone have any advice or must see events, landmarks, good roads? Any advice is appreciated.