I second this.I say get Superman and the Legion of Superheroes. Just for Gary Frank's pretty drawings.
Really great story, with lovely art. Worth every pretty penny, in my mind.
"The Curse" has LoSHv2 307 to 313. It's right after the uber-famous Great Darkness Saga. It's a good place to start because there are numerous story arcs that feature the entir Legion membership, plus you'll get to visit the Legion Academy, know more about Durla, have a cosmic threat in Omen. It is, together with Great Darkness, vintage Levitz-Giffen. Just a great read.
Check out my take on the Legion here . . .