What is the best way to import raster images with clipping paths, and vector
images into PowerPoint? They have to look good, and print at least decently
(for handouts)  PNG files look bad, and print worse, eps files with paths
don't look good either, and the old tiff with an alpha channel thing no
longer works, also logos, and other vector graphics, is there a way to import
them and keep them looking sharp and crisp, sometimes I need to animate them
so I need only the logo or vector graphic, no background, any help greatly
appreciated, Either Mac or PC solutions welcomed.

Thanks