Instructions for making slides and posters can be found on the Digital Media Center site

However, based on my experiences using Windows applications:
FAQ for making SLIDES
FAQ for general Graphics

Converting  MRC maps into dn6 format for O

Managing PostScript Images
    i.e., converting PS to EPS, inserting previews

Technical details of graphics file formats (TIFF, JPEG, BMP etc)
    see MRC documentation for details about MRC file format

Use of Agfa Horizon Plus for digitizing EM negatives 
    see EM suite for use of PDS 1010GM

Use of Zeiss SCAI scanner for digitizing EM negatives

Making animations (Bill Rice's notes)

A brillant FAQ for using multimedia content with PowerPoint