Then your mail client becomes your RSS client. Gmail has j/k key bindings, is relatively unadorned, and facilitates your skim / skip workflow. Excerpts might require some work, but perhaps you could coerce them into the subject line.
Aaron Swartz wrote a nice RSS to email gateway btw: http://www.allthingsrss.com/rss2email/
I have a crappier one that delivers directly into a Maildir, and I use it to read news in mutt: http://search.cpan.org/~acg/rssdrop-0.2/rssdrop