WowAceUpdater is an application designed to update, install and uninstall Ace addons. This allows you to update all your ace addons with a few clicks. It got a complete list of all addons files.wowace.com, so you can search and install from the application aswell. Im only using Ace addons myself because they are pretty lightweight compared to addons written on other platforms
Get it here:
WowAceUpdater - WowAce Wiki