Help for choosing Components / Helper for my new web app

[eluser]sikkle[/eluser]
Humm, will be a very very opiniated thread.

Honestly, if you go with multi language website, go with lang url stuff from the wiki.

Matchbox and ModularExtension are both good tools to let you build modular stuff, i'll go with modular extension at my own opinion.

About auth, if you need lightweight one, go with Authentification library build by popcorned. if you need complete management system, some will tell u to go with freackauth. I'll go with authentification library.

About model you have several choice, if you deal with huge database manipulation and working in team, i suggest to use Doctrine big time. If not, go the natural way with ci-active record and that will do the job for the most general stuff.

see ya around.