DesktopZoom is a zoom/magnify program with lots of options. See for yourself:

• Zoom an area around the mouse, zoom a fixed window or zoom the entire desktop
• Use the mouse inside the zoomed window
• Use the mouse wheel or arrow keys to adjust the magnification strength
• View the entire screen as a thumbnail in the right-bottom corner
• Follow the caret & menu items
• Change the colors to grey or invers the colors
• Show the original screen with a transparency value between 0 en 100%
• Show a bigger mouse and/or a crosshair
• Use Alt-keys to change the zoomvalue and to enable/disable tracking and the crosshair
• Save all the settings to a file for automatic loading