Regia Art Market - 2007 Most Expensive Paintings Sold in Auction

1937 Henri Matisse painting – US $33.6 million

Warhol’s iconic Liz Taylor portrait – US $23 million

Francis Bacon’s self portrait – US $33 million

Francis Bacon’s Bullfight – US $45.9 million

It's fantastic, but what about paintings from the less known artist?
Where sales are most likely to happen in 2008 for artists not available in the auction room?... online, or in a private room?