Well I'm back. This is not a trip report, just saying that I had a wonderful time, most notably with Gabriel on the Northbound Coast Starlight. He was everything I could have asked for and more. I was cozy and snug in my roomette, I almost didn't want to leave for the (very good) meals.
If I don't get too swamped with schoolwork, I'll do a detailed trip report, but for now, just let me say I am one happy woman. I'm so glad I did it. Next time, I won't stop at Sacramento, I'll go all the way to Seattle!
Again, my thanks to everyone who provided tips and encouragement. Made the trip that much better, knowing what to expect. I'm grateful.