RSS Xpress is a classic three pane native Windows RSS reader with rolling popups. It had been more than 6 months since last I tried it, so I fired it up last night. They've fixed some of the bugs I enumerated back then. It's mostly used by the French community, but is also translated to a half dozen other languages. I imported my 500+ feed OPML and began reading within a few seconds.
PS: please, note that there is a space in the name --> "RSS Xpress" ;-)