your type of shoe will depend on the type of pedal you have: is it an SPD? Look? Dura-Ace?.........you'll need to make sure your cleats fit the shoe you're looking at. I've heard wonderful things about Sidi but they tend to be very pricey, my road shoes are Specialized and I got them for under $75.00. It was the perfect entry-level road shoe to get me used to riding with clipless and the stiff sole. Nike also makes a really good road shoe as does so many others. Indy is right: you need to try them on and try them on With the socks you'll be riding in. Also remember, your feet will tend to swell in the shoes so look for shoes that will be easy to adjust/loosen.
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"