Does anyone have advice on the best bicycle shop in Aurora, CO? I need quality with value and a FAIR shop!?

I can't afford a top notch bicycle yet but I would like to get back into biking for fitness and start with a less expensive starter bike. My budget for a starter bike is around $300-$400. I'll get something nicer later, when I figure out my style and committment. Right now I would be biking in town, on asphalt or the canal bike trails, on the street, etc... I won't be hitting any mountain trails for several months. Also any advice on a good, inexpensive starter brand AND advice on those things you put on your car trunk (Ford Focus) to carry a few bikes on?