a thought regarding camera(s)

It would be kewl if Blender could snap the camera POV to the grid.

1 - hit 0 (zero) on the number pad
2 - select camera
3 - hit tab
4 - snap camera corners (vertex points) down to the grid

Reason: For ultra precise rendering. My thought is if we wanted to make textures using Blender, and wanted an exact 256x256 scale we could match the camera POV exactly to the 256x256 object we have created.

Make sence?

Note: this is probably posted in the wrong place, but i am in bit of a rush today. apologies if so.

ever heard of Ter2Blend?
or orthogonal rendering?