Unless you happen to be a mechanic, you're going to need some help with a bike. But trailrider, don't get too worried about it. The more time you spend keeping your bike in good shape, the less it will break.
As a side note, I don't know of too many bikes that are better taken care of than mhpr83's stuff. I've never seen anything on his bikes that was messed up or that wasn't chosen because it was the best. You're not going to find a better deal than that, I'd get it, but I'm a bit taller and want a large.
BMX is fun, and you should ride it too. But that's a hell of a deal on a sick bike.
As a side note, I don't know of too many bikes that are better taken care of than mhpr83's stuff. I've never seen anything on his bikes that was messed up or that wasn't chosen because it was the best. You're not going to find a better deal than that, I'd get it, but I'm a bit taller and want a large.
BMX is fun, and you should ride it too. But that's a hell of a deal on a sick bike.