The New Haven Budd RDC's that have been previewed in the VNHRR Springfield Line thread are now available at Trains and Drivers.
They come in two add-on packs, one featuring the passenger carrying RDC's (RDC-1, -2 and -3), and one featuring the mail- and express-only RDC-4. Each car is available in DuMaine and McGinnis era liveries and a number of extra options.
More info, pictures, manuals and of course the add-ons are available here: http://trains-and-drivers.net/
Or follow the recent developments of the RDC's at our Blog here: http://vnhrr.blogspot.de/

Prices include the German VAT of 19%, which applies only to customers in the EU.
Cheers
Michael