Here are my go-to resources for updating finishes in the home:
Ferguson – plumbing and appliances. They have great customer service.
Home Depot – great for basic finishes
Lowe’s – one stop shopping for the home!
Houzz.com – indispensable for design research
Rejuvenation – reproduction lighting and hardware
House of Antique Hardware – extensive collection of reproduction hardware – very knowledgable and helpful staff
AllModern.com – modern everything for the home
Richlieu – cabinet hardware
Top Knobs – knobs and pulls
Emtek – high quality door hardware