Split Scene Into Multiple Renders?

How would I split my scene into multiple renders and then be able to composite all the renders back together? Could I use render layers? My comp can’t handle my scene all at once. :l

Blender 2.58

you can add render layers and then assign which layers you want to include in that layer.

For render that is complex, you really need to bake texture. Essentially you are pre rendering all the object that way.