as a webdesigner i usually also makes cards in teh same design for the
customer. I move the graphics into a new document with a DPI of 300, finish the
card, saving as JPG. THEN i open it in photoshop and convert it to CMYK colors
to see if it does look as intended. then ship it to the printers.

but no - FW is not for print work in general. Good for PDF's though.