Nature Mouse Cursors
1. Right-click on the picture of the cursor you want to use and choose "Save Link As..." or "Save Target As..."
2. Save to a folder of your choice (the Windows cursors are kept in C:\Windows\Cursors, but you can save it anywhere).
3. Click Start>Settings>Control Panel>Mouse>Pointers.
4. Double-click the pointer you want to replace, then choose the file you just saved. Click Okay.
If you wish to use these for a webpage, please read the terms of service.