But when you import your pixel illustrations in a lay out program like Quark XPress (I am not 100% about InDesign's handling of size/resolution info), the size can fool you, because that program takes the given dimensions in inches in consideration. So you have to take care yourself of the right amount of pixels per inch. You can make a illustration sized 20" with a resolution of 1 pixel per inch, but it will never look any good. You can change the resolution in Photoshop without changing the pixel size of the document by unchecking the box 'calculate new image pixels' (or something similar, I have a localized version). If you increase the resolution per inch, the size will shrink, but when you set it to 300 dpi, you can immediatly see how large you can use that particular image for print. Recent versions of Illustrator (the vector app) do actually have more and more 'pixel'functions on board (like drop shadows), for which you have to change the resolution to 300 dpi too. I recently found out...