Auctions are often great places to look for bargains - unless of course there is someone who wants a stuff as much or more than you. However, it can be tough to put a value on things you like. I guess in the end it depends on your budget and how much you need or love the stuff.
Anyway, if you are a Connoisseur of the arts, take a look at Park West Gallery. Park West Gallery has one of the largest collections of high quality fine art in the world. They do conduct fine art auctions throughout the United States and Canada.
Founded in 1969, the gallery is based in Southfield, Michigan but they also have affiliate locations in Miami, Florida. Another affiliate company "Park West at Sea" conducts art auctions on cruises around the World.
If you are interested, you can to one of their professional sales consultants who are also trained experts.