I found a decent RSS reader for outlook that is free called intraVnews. As much as I like beggregator's look, it hasn't been developed for ages, never made it into an intelliJ plugin, doesn't update automatically and is a bit heavy on the desktop. Maybe later :(

intraVnews is good for work where I have to have outlook on all the time anyway.

http://www.intravnews.com/download.htm?Button1=Download