If you like to browse and get up close before you buy, the Texas Vintage and Special Interest Motorcycle Auction, Saturday, September 30th in Arlington, Texas is the place to be. Lots of nice bikes going under the hammer like the ex Steve McQueen 1929 Harley Davidson pictured above plus lots of other similar vintage Harleys, a Brough Superior, a 1935 Cotton, old Indians, plus nice little extras like a 1982 Ducati 900SS still in the crate!
The auction is put on by MidAmerica Auctions and you can see a complete list of the bikes up for sale over on their site. Might be worth a trip if you want to add a nice vintage ride to your collection.