ok, so i got some prints done this weekend and i was pretty disappointed. i have a d90 and my pics looks great on screen, but i guess somewhere between resizing and changing file formats, the image becomes poor print quality. what steps should i take on my computer to get a picture ready to for print (i.e. resizing, changing to tif/jpg, resolution, boarders, etc)? i got two photos printed, one with my d90 and one with a canon powershot point and shoot. the powershot pic came out much more clear in the print. the d90 pic looks better on screen, but came out grainy when printed. wtf? help plz.