On second thought, I've once again devised another theoretical trade in which the Spurs could acquire Camby. It's one that satisfies all three teams needs...
Clippers get: Butler
Spurs get: Camby
Wizards get: Mason, Bonner, Finley, Splitter, 1st round pick
A quick note: Ratliff could technically be put into the package instead of Finley, but it's irrelevant, as I suspect the Wizards would immediately buy out either and allow them to sign with a contender. My guess is both, particularly Finley, would re-up with the Spurs for the remainder of the season.
Why each team would do this
Clippers: Admittedly looking for an impact player now, rather than waiting for the summer, have a need for a starting SF and are unlikely to attract anyone better than Butler.
Spurs: It's obvious why they'd do this, so I won't even bother getting into this, other than to say the only reason they'd consider not doing this is if they value Splitter so much that they can't bring themselves to part with him for an injury prone, 35-year old player.
Wizards: They're looking to re-build, reportedly prefer to move Butler before Jamison and would not only get a cadre of expiring contracts, but a 1st round pick and a quality prospect who could (if they trade or don't re-sign Haywood) theoretically step into their starting center spot next season, if they're successful in convincing him to come to the NBA.