Instead of using the AUR, you can use external repositories to help you save time instead of compiling programs. Here is a list of trusted external repositories.

archlinuxfr

This repo contains yaourt, a frontend to Pacman with advanced features such as being able to compile from the AUR, localisations for French, VirtualBox and various other programs. You can see a list for i686 here and for 64bit here. Open your /etc/pacman.conf with your favourite text editor as root. If you are running i686, add the following at the bottom of the file

[archlinuxfr] Server = http://repo.archlinux.fr/i686

and if you are running 64bit

[archlinuxfr] Server = http://repo.archlinux.fr/x86_64