Wow - thank you all for the amazing responses! I looked into Aster and thought they only made gauge 1 equipment. Little Engines also doesn't mention O gauge on their website. I was unaware of Neff and Roy Ashley. I am looking into the British offerings as a bridge to see if I want to deal with outdoor track or steam/ oil residue, but I would rather have an American style outline. This stems from going to the Cabin Fever Expo last weekend and seeing a Bassett Lowke enterprise chugging along. (All I need is to get fascinated by another expensive aspect of this hobby!)
@Carey Williams - thank for the pictures, those are amazing, especially that Pacific!
@bob2 If you have that 4-8-4 on the shelf I would love to see a picture.
Thank you all for the great info!