Who knows. Most likely Nene. Kaman seems like a possibilty, though I'm not a fan. Bogut may be a darkhorse, but that's probably more wishful thinking.
I can't see the Rockets acquiring a starting center via trade before the deadline. There aren't many good ones around the league to begin with.
I honestly believe that's going to end up happening as well... but I'm holding out hope that Morey finds a way to pull Nene away from Denver and decides to try to start building toward a Nene + Legitimate Center combo.
Also, the "Young Center" option probably isn't there because if the Rockets make a trade for a promising young Center, he probably won't see the floor for quite some time.
i believe that portland is stuck with those demons for trying to copy cat us as a way to build their team.