This thread for some reason reminded me of a twin two-seater that really stoked my interest when I was a kid: the Wing Derringer.
So I googled up some URLs that some of you may find interesting. In particular, there appears to be one offered for sale near San Francisco. Now I really wish I had taken the time to earn a pilot's license with twin engine rating. Oh well...
(On the other hand, there may be a reason why this almost 30 year old aircraft only has 266 TT)
www.aircraftworlddirectory.com
www.probertencyclopaedia.com
www.controller.com
www.airstuff.com
www.flightglobal.com