Oliver Weiss, over at Walden Models.com has a super good paddle wheel steamer the "Anglia" available right now, and I understand he's working on a second to be released soon.
Also this site has some good trains, as well as other subjects.
http://www.bastelbogen-online.de/
Both Kartonmodell-forum (German) and Bastelbogen online have links to German and other websites.
Happy hunting!