AWESOME! xxoo

Thank you for all your helpful input. Resizing is something I have done before. I understand from your comments that it will not be hard to capture a fixed area of the screen repeatedly. The tricky part for me will be finding the exact center of that fixed area. I need to reposition every image so that the spot of interest (different on each image) is exactly dead center in the capture.  I probably do not have the patience or skills to use a command line program. I could use the screen coordinates of the corners of the capture screen (determined by using a mouse position reporter), calculate the coordinates of the center of the rectangle and put scotch tape with an X at that point, and then center the pictures on the scotch tape. I have a simple mind and have also thought about cutting out a 4:3 ratio piece of paper, finding the center by folding corner to corner, and then cutting out the center to locate the scotch tape . The easiest thing for me would be if there were a program where the capture rectangle size could be fixed, had crosshairs at the center, and could be dragged to the point of interest for each capture.
Thanks Again,
Chris