The used books on Amazon are really cheap, and every one I've ever bought off there surprised me at how really good shape it was in!
Another good one is "Beginning of Sorrows"...follows several characters in different story lines that intertwine, about the Beast coming to power. The first book in the Omega Trilogy, this one starts when Project Final Unity, an electrical blackout covertly contrived by political leaders gets out of control, shutting down the entire U.S. and bringing about chaos, anarchy, and famine.
I just looked on Amazon, and the 2nd in the series (Fallen Stars, Bitter Waters) came out in 2000, but they are not going to release #3, because they apparently didn't have enough sales of the first one.
IF you are willing & obedient , you shall eat the good of the land: But if you refuse & rebel, You shall be devoured with the sword: for the mouth of the LORD hath spoken it. Isaiah 1:19, 20