President Bush has nominated Samuel Alito, a 3rd Circuit judge, for the Supreme Court.
From this AP article:
Judicial conservatives praise Alito's 15 years on the Philadelphia-based court, a tenure that gives him more appellate experience than almost any previous Supreme Court nominee. They say his record shows a commitment to a strict interpretation of the Constitution, ensuring that the separation of powers and checks and balances are respected and enforced. They also contend that Alito has been a powerful voice for the First Amendment's guarantees of free speech and the free exercise of religion.
Also: Time has a short article that discusses differences between Alito and Scalia.