Trainz

I figured that this would be a thread where everyone can post what locomotive they believe should be available for use on Trainz. However, to keep the suggestions at a minimun, here's some rules:

It needs to fit in the following categories:
Steam-powered (i.e. steam locomotives, steamboats, etc.)
Internal-combustion (Diesel locomotives (Diesel-Electric locomotives also fit into this category), Gasoline locomotives, etc.)
Electricly-powered (i.e. trams, high-speed trains, etc.)
Other (Turbine-powered (Steam-Turbine included and ones that use fuel used in internal-combustion locomotives are included in this category), Magnetically-powered, etc.)

Only ONE entry per category

You can choose to list one suggestion or multiple suggestions, but it still must be ONE per category.

Suggestions only apply for objects that you would like to see available FOR FREE, reguardless of whether it's on a third-party site, or on the Download Station

Here's my list:

Steam-powered:
Southern Railway (U.S.) Ps-4 4-6-2

Internal-combustion:
Southern SD9

Electricly-powered:
Milwaukee Road EP-2 Bi-polar

Other:
Pennsylvania Railroad S2 6-8-6 Steam-Turbine

How about everyone out there?