Thank you again for your time and thoughts, dalethorn,
I thought the Railroad part might be too dark, I will try to upload one with the suggested changes applied sometime soon.
Since I got my copy of Lightroom 2 I cant seem to get enough of B&W, I love it :-)
Both lighthouse images were good, but I preferred the B&W - the color shot didn't have quite the drama. The gate was good also, but it felt a bit crowded - too many details in a small space. The RR area was a little too dark - not a lot, just a little. I don't know for sure that it would be better if the shadows were lightened slightly - just a guess.