Need a little advice

[Stargazer77517]

I searched this forum but didnt come up with anything. I am wanting to make some prints. I always input sharpen of 125/1/.3, and after processing I out put sharpen for the web. I have tried several sharpening settings with prints but they just dont look all that great (look better on the web) what do you recommend for an output sharpen for sending to the printer. Mostly will be 8x10, 11x14 and a few 20x30. Is there an average amount thats good for all there? Or is there a way to view it on the computer after sharpening so I can be sure its going to come out right? Cameras are a 40D and 50D if that makes any difference
Thanks for the help.