I love the idea of using spreadsheets. It will allow me to do an array of projects within my grading system. These include student averages, individual exam averages, and standard deviations on both.

Spreadsheets are better than calculars because with a calculater, you have to individual punch in every number over and over for each student. With spreadsheet you can put in a formula once and then copy and paste it for the rest of the columns.