Toronto's Green Building Supply Showroom and Design Center
Toronto's got its own Green Design Center, so if you need cabinetry, flooring or carpeting that's eco-friendly and energy-efficient, start in their showroom. It's a great collection of 'what's out there' and it may give you ideas for what's possible.
If the pricing seems too high you can probably find similar products elsewhere, but watch out for wood and bamboo products; many suppliers claim that their wood products are certified by the Forestry Stewardship Council (FSC) but they're SO not. (Please, please, please be especially careful about the bamboo you buy. Some bamboo suppliers are tearing out panda habitat to plant the kind of bamboo they can turn into flooring. That sucks for the giant pandas, which are already on the endangered species list since they were driven out of their lowlands home years ago by farming and deforestation. End of lecture.)