I'm currently working on a project to create custom set up cards for a board game using photoshop. These cards are going to be printed and will measure 8 x 4.5 inches when they're finished. I'm working at 300ppi, but... I'm not really sure what pixel count I should be at for width/height. On an 8 x 4.5 inch picture, what should the pixel count be for a clear picture? Thank you for your time.