Fantastico DeLuxe will allow you and your customers to install over 50 scripts instantly. To use fantastico you or your client will just login to their control panel
click fantastico, and then click one of the 50+ scripts to be installed such as....

Blogs, Portals/CMS, Customer Support, desks, forums, shopping carts, Image Galleries, Mailing Lists.

Blogs:

b2evolution
Nucleus
pMachine Free
WordPress

Portals/CMS:

Drupal
Geeklog
Joomla!
Mambo Open Source
PHP-Nuke
phpWCMS
phpWebSite
Post-Nuke
Siteframe
Typo3
Xoops

Customer Support:

Crafty Syntax Live Help
Help Center Live
osTicket
PerlDesk
PHP Support Tickets
Support Logic Helpdesk
Support Services Manager

Discussion Boards:

phpBB2
SMF

E-Commerce:

CubeCart
OS Commerce
Zen Cart

FAQ:

FAQMasterFlex

Guestbooks:

ViPER Guestbook

Hosting Billing:

AccountLab Plus
phpCOIN

Image Galleries:

4images Gallery
Coppermine Photo Gallery
Gallery

Mailing List:

PHPlist

Polls and Surveys:

Advanced Poll
phpESP
PHPSurveyor

Project Management:

PHProjekt
dotProject

Site Builders:

Soholaunch Pro Edition
Templates Express

Wiki:

PhpWiki
TikiWiki

Other Scripts:

Dew-NewPHPLinks
Moodle
Noah’s Classifieds
Open-Realty
phpAdsNew
PHPauction
phpFormGenerator
WebCalendar