[Post-Editing your Renders??]

Just wondering if I can find a manual somewhere or if someone could help me with post-editing work on my residential rendering? I assume that photoshop is the software used but what sort of settings are applied to smooth out the render and make it softer, more realistic looking?

Thanks again,

Stuart

[critique and advice please]

How do you guys get that nice smooth finish?

What are the procedures and software used for 'post-editing' of renderings?

thanks in advance

Stuart