There is nothing complicated about commuting, it's a very simple thing to do. Just get a bike that you feel comfartable on, buy few accessories like a good lock and a few lights and start from there. And then as you go along you will learn new things and tricks and upgrade your equipement. Don't believe everything that you read on internet forums , sure some of it is good helpful advice but some of it is bull****. Remember that just because something works for somebody doesn't mean it's gona work for you.