I finally got around to watching Firefly ~a year ago – absolutely amazing.
Several friends dropped my earlier expectations by telling me it was only good because of Whedon’s name, etc, but it really blew past the hype. Of course, it’s a terrible idea – because now I’ll spend the rest of my life watching through the series/Serenity every year and knowing that there’ll never be anything more.
Also, Summer Glau.
I might get around to watching Babylon 5 later, but I’m going through other series right now (Buffy, Castle, planning to start up The Next Generation soon too, now that I finished DS9).