light linking

hi guys,
could anyone please tell me if there is a possibility to create light linking in blender 2.5?
by that i mean that if i have a scene with one single light and 3 objects to be able to light just 2 objects and to exclude one. The excluded object will be not lightened at all.
Can this be done?

Put the excluded object on a separate layer to the others and the light, and in the lights lamp settings select ‘This Layer only’ so it only illuminates those objects on the same layer as the lamp.

Thanks a lot Richard Marklew for your fast answer, but is there a possibility to just go and select the objects that you want to be affected by the light? better select the objects that one need to be excluded from the light?
is there like other method than illuminating just those objects on the same layer as the lamp?