@fBoyle-- Across the pond means United Kingdom or Britain. It's an old idiom. "Pond" refers to the Atlantic Ocean. Steamed pudding is popular in Britain, especially during the holiday season.
Most pudding steamers out there work very well. I have a two liter one and it has always been enough. I do recommend getting a non-stick one though. Mine is non-stick and I don't even have to use butter or oil. The pudding slides out very easily.
The only thing I don't like about my steamer is that it doesn't have different molds with shapes and designs. Sometimes I want my pudding to have a more fancy look. You might want to keep that in mind when shopping for one.