Had exciting contact from a visitor to these pages - Jim Baumann who's fantastic collection is summarized for you below... Jim's mainly a ship modeller (you can view his stuff here) but has acquired numerous lovely examples of locomotives at various scales (Where possible I've made the locomotive names hyperlinks to articles on the prototype):
This is his LNER W1 built from the South Eastern finecast kit:
Various NYC Hudsons....
Norfolk and Western J-600
BR 61 Locomotive (prototype built to pull the Henschel-Wegmann-Zug trainset)
DRG Class 60
DB Class 10
...and lastly a lovely example of the Polish Pm36 in card using a kit from Marcle Models. I'm now planning on scaling down one of these and seeing if I can knock up an acceptable version in N gauge!:
Jim's got a nice display going that we can all envy... now if only they were all available in N gauge!