Project Website: http://www.globodigital.net/
Download Location: (Click)
Languages available: English

Project Website: http://www.zoomfactory.org/
Download Location: (Click)
Languages available: English, Danish, Swedish, German

Project Website: http://www.joomlapolis.com/
Download Location: (Click)
Languages available: English, German

CommunityBuilder lets you define your own registration and user details pages. You can simply add all sorts of fields and define whether they are required to be filled out or/and if they are shown on the public profile page.
CommunityBuilder also brings a highly customizeable userlist which can easily be browsed.
I think, this one is a must have for all lanparty sites, because most of the time you need the user's full address and contact details.

Project Website: http://www.tsmf.net/
Download Location: (Click)
Languages available: English, German, Spanish, Italian, Norwegian, Czech

I prefer this forum component because it is fully integrated in Joomla! So no hassles with multiple usertables like the vBulletin on phpBB integration. It is very easy to install and handle. All Forums and Categories can be managed from the same admin page, and it integrates very nicely into MyPMS and Comunity Builder.