I was told to always replace brake parts in pairs, as in if you do the passenger side do the drivers side too. I got a one person bleeder kit from Autozone for about $5 which consisted of a tube and a little bottle with a magnet attached to it. One end of the hose goes on the bleeder valve and the other goes into the bottle. By putting a little fluid into the bottle and making sure the end of the hose is always submerged, no air gets in the line. It makes it very easy to do by yourself.
The hardest part for me was to get the drum off. Oh yeah, get NAPA parts, not Autozone ones (wheel cylinders).