Slides on Parade

I found these in a box of family slides at an estate sale in Oakville a couple weeks ago.  In the box, I found some great slides of the 1982 Veiled Prophet, or VP Parade in St. Louis.  You can read about the parade's sordid past here.  Sordid as it may be, it had some great floats.  Again, I apologize for the quality of the shots.  I'm using a digital camera taken straight from the projection screen.  Still waiting to get that slide scanner.  Can anyone recommend an affordable yet capable slide scanner?