I found a new 2012 Trail SL 29er 5 for $550 at a lbs. I am thinking this would be a good first MTB but I don't know alot about Cannondale. I thought I had decided on the Trek Marlin but I got distracted. Any issues that I should know? I will mainly be doing light trails and some asphalt with friends. I have heard good things about the Cannondale frames and would over time upgrade the components.