Boldface type is usually okay, but avoid it if you want to be safe. Avoid any graphics or shading. Use horizontal and vertical lines sparingly. It is best to avoid them entirely, but if you do choose to include a line, make sure there is plenty of room on either side of it. Do not compress your resume to make it fit on one page.
More white space means a more scannable resume.
Use an ink jet or laser printer to insure a good quality print job. Avoid any abbreviations, even for degree titles. When in doubt, write it out. Your name should stand alone on the first line of your resume. Put your address below your name, not next to it or above it.