Why not use IIS 5? It's already there and it is a fully functional version. Add ActivePerl and you're ready to go. If you are looking for user friendly then use what the OS expects to see. IIS is an extremely power web server. You'll have to make sure that the IUSR_xxxxxx user has the proper permissions for the cgi-bin and Infopop has great instructions to get you going.
You don't "uninstall" IIS, you turn it off. You can also add PHP very easily. Try IIS and if you don't like it or just want to learn more then try Apache.