I loved that arc from Azrael, it was definitely a high point for the series. I scored the individual issues from Midtown Comics' website for a couple bucks each about three or four years ago. Definitely worth checking their site if you're interested in reading/owning it.
And if you're going to read Contagion & Legacy, you absolutely MUST read the 4-issue Bane of the Demon mini-series, as it sets the deck for the entire scheme that Ra's unleashes, as well as explaining Bane's involvement (and his first official rematch with Batman since Knightfall).