if you do resample and set it to 8x10 at 300 dpi then zoom to 100% on your screen you will get an idea of how it will print although monitors tend to display a bit sharper than printers print there is no magic button for your dilemma some subject matters are more forgiving than others on resamples skies hate resampling, forests or busy shots do not a few tricks would be to add noise and or sharpen i think ps3 has a reduce digital artifacts function, but i forget where it is in the menu