We require a site where the following scripts are integrated to work and look flawless.
Joomla (With the community builder module)
A signup allows access to all features (signup is to be started in joomla).
During the signup process there should be a script which allows users to import contacts from yahoo, hotmail , gmail and aol and send invites (which will be a html page including the users name and e-mail address).
In the profile of every user ( the joomla community), it should link the users current auctions and wanted ads from PhpProBid, and classifieds from e-classifieds.
The user should also be able to manage everything from one page.
The site format should be consistent, look great and fast loading.