Whats the best option to prepare a vector logo file for large format print with 100 to 120 dpi resolution. The problem with the logo is that it has gradient overlays and transparencies within. I know handling these for a pantone print version is tricky. The print guys use CMYK printer and they want me to specify all critical colours in pantone. I was suggested to paste the vector on a CMYK psd file ,set the resolution,flatten the layers .I am generally not used to Photoshop for print works. And I am completely nervous. Its a huge banner and messing the colours is the last thing I would want to see. what would you do if you were given this task . Pls help.