If the Utopia issues of Legacy didn't grab you, I wouldn't rush out and get it. When the current arc comes out in trade, it might be worth a shot.

It looks like the first arc of Dark Avengers just came out in paperback, so if you enjoyed those sections of the crossover, I'd definitely recommend that. The characters are all pretty loathsome, but they're fun as a group, in a morbid kind of way. And basically the same group, before the DA title started, was in Thunderbolts -- that series has been around for a while but the relevant volumes are 'Faith in Monsters', 'Caged Angels', and 'Secret Invasion.'