I'm not a fan of Stephen King, as far as I'm not a fan of horror and the like.
I've always enjoyed "The Eyes of the Dragon" though. I had read the original edition of The Gunslinger about 10-15 years ago also.
I finally read "The Stand" last week and really enjoyed it - I had meant to read it a few times over the years and never got around to it.
I just re-read the Gunslinger (newer version) this weekend and I'm onto book 2 this week.
I appreciate King's style - oddly it reminds me of Isaac Asimov - kind of a spartan writing style that worries about telling a good story, and not so much fancy prose.
I think you'd enjoy the Stand. I've always had a liking for post-apocalyptic stuff though