Dave's PPESP Page 

 HERA Overview Slides, (PDF Version), Online Slideshow
 PPESP Slides, (PDFVersion), Online Slideshow

 Schematic of Zeus with upgraded components
 Drawing of Zeus with upgrade magnets
 Elastic Upsilon event
 Diffractive D* event

If you have problems ghostviewing any of the above, just shift+click on the link to download the gzipped postscript file