"First off I love, love trains, but WOW are they hard to sell. Maybe it's the 1000000000000000000000000000 billion available online, or people who love trains take their own pics...D'oh!!! "
I meant to mention that last part in my post... people who love trains do take their own train photos. I see them all the time on Facebook, Flickr and Railipctures. On Facebook, you realize just how many folks do and that not all of them are particularly good at it. I feel that if I could get some really good (read: expensive) night time lighting equipment -- think Gary Knapp-type work -- I might could sell more. Until then (never, really) I'll try to keep up with the bridge shots.
Your Rock Island shot should really sell though.