To help you, here are the suppliers that we use here in Normandy. Please feel free to click on the links to look at their online catalogues to help you choose. You can find all the things you need such as shower units, kitchen styles, right down to radiators and taps.
BricoDepot - All Building Materiels
Point P - All Building Materiels
Reseau Pro - All Building Materiels
Tout Faire - All Building Materiels
La Peyre - Bathrooms
Ikea - Flat pack Kitchens etc.
BricoDepot - Electric Heaters