Well, those two Hulk issues were a good take on Attuma as villain and butt kicker. ; p
There's a story in Dark Reign Made Men that focuses on Attuma, which I thought was revealing and more sympathetic.
There was also a Fear Itself The Worthy short on Attuma, who got one of the hammers in Fear Itself, so he had a couple of stories in that event -- one with Alpha Flight and one with the 'Defenders' = Fear Itself The Deep -- which I enjoyed.
I don't think I've actually read this issue.
He also had a role in the first Atlantis Attacks, so that's probably a good read on him.
Oh, and a young Attuma appears in the recent King in Black Namor mini-series by Kurt Busiek, which again, gives a more sympathetic take on Attuma.