Okay fellas I just got my federal check back from the government and want to spend it on a bike... I've never been mountain biking but it seems fun and I'd like to get into it (it'll help with my lack of cardio as well)... What I am getting at, if any of you know, are what are some good bike brands? I know Diamondback and Iron Horse and pretty good, but what others? And again, I'm a beginner and looking to spend around 200-300 dollars!