Bryan.
Like everybody else said, go to Spin.
Make sure they understand the intended purpose of the bikes use. Do not go for the bike with the most flash either. Go for the one that has the best components for the price range you are looking at. Nothing worse than a flashy looking bike with cheap components.
Who ever you buy a bike from make sure they fit you to it. If you buy clipless pedals and shoes, make sure those are adjusted properly too.
On top of all that Tim had to say,
do not cheap out on a helmet. Buy the best helmet you can. A quality helmet that fits properly and does not make your head too hot is a helmet you are more likely to wear. I woke up in a hospital one day damn glad I had been wearing a helmet.
Joe
former Road and Criterium racer.
My record-one concussion, multiple broken ribs, lot of road rash, zero podiums
