10-and-5 rights are tough to earn - a player needs ten years in the Majors, the last five with his current team. The players' union wants these rights to mean something, so players are discouraged from waiving them. The rights are still waived at times - for example, Derrek Lee and Lance Berkman eventually approved trades last summer.
Here's our list of players with 10-and-5 rights:
It appears that Carlos Zambrano will join the club on August 7th, and Josh Beckett will achieve 10-and-5 rights on August 19th. Zambrano, of course, already has a full no-trade clause as part of his contract.