Here is a little project I whipped up using a section of Kato track. I got tired of shiney rails and did something about it.
Here is a shot of it.
http://img208.imageshack.us/my.php?image=tracktesthw0.jpg
Good or bad? The structure is one I purchased second hand from another layout via the LHS and the platforms are wood kit with laser precision. The boxcar is a bluebox Timken Roller I won on ebay some time ago. That is the Falls Valley Company House.
Anyways, the weathering was started with the "Rusty Rails" from Joe's model trains and after a few passes... eh.. I got out the Bradgon and went to work starting with the dark in the middle and working out to either side.
Reinhard