There seems to be some questions, in this thread, of who we want more: Ware or Newman? It's not even close. Ware by far. For a multitude of reasons. The #1 being the fact that Ware's impact on the outcome of a game is much higher than Newman's. Without a guy like Ware, Newman is just another guy. QB pressure leads to more INTs than straight coverage ever will. The best CBs in the world can only cover a guy for so long.
Second? With Newman's age the odds ore in favor of Ware being around for a lot longer than Newman, anyway.
Third? It all starts with the front seven (on defense and the o-line on offense). Tremendous pressure on the QB can make even the most mediocre of CBs look like all-stars. Look at Lito Sheppard and Sheldon Brown. When that Eagles front seven is wreaking havok, those guys look amazing. Take away that pressure and they're nothing special. Want to go the other direction? Take Champ Bailey or Chris McAllister for example. Once the dominance of the front seven that they worked behind became less effective, they began to look more "mortal" than they previously were. Don't get me wrong, both are still great corners (Bailey more than McAllister), but they haven't been nearly as effective since the front sevens in front of them began to falter and certainly can't turn things around for their team like a dominant pass rusher could. The Texans passed on Reggie Bush (much to the chagrin of the majority of their fan base) for the same reason. The pick looked idiotic (both immediately and during the following season), however after watching Mario Williams in his second season (how that guy didn't make the Pro Bowl is the biggest joke ever) and watch Reggie Bush become JAG when his team needed him most the pick seems genius. And, in hindsight, it was the right move.
We have, quite possibly a guy that could become the most dominant pass rusher in the league over the next 5-7 years in Ware. Newman? I'm not so sure that he'll be the best in the league, especially since (at the age of 30) he hasn't gotten there yet. He's good, no doubt, but is he worth more than 8% of a salary cap that's supposed to secure 52 other players? At this point I would have to say, unequivocally, "NO". Neither is Clements, Samuels, Hall, or Bailey.
Now, if Newman were to give the Boys some wiggle room and still pay him an elite salary (not 10 million a year) then I would be all over re-signing Newman, but if he wants a Hall, Clements, or Samuels deal then let him walk. You just don't pay 10 million a year for a 31 year old CB even if he turns out to be the next Darrel Green (which he hasn't even really sniffed yet). That money could be spent far wiser than on 1/4 of your secondary.