Quick User Management

[eluser]KennyBrijs[/eluser]
Hi all

I'm a junior developer and new to codeigniter, but I'd like to make a little web-app.

Of course I'll need user management, and good practice is not to reinvent the wheel. I already found a 70-minutes tutorial and 2 libraries, but I was wondering if you guys could help me out what to pick or do.

I need basic user management (people enter username, email, password and confirm via email) and if they want to they can also fill out additional info for their profile.

Is there a package that you can recommend which is easy to use and to extend/modify?

Thanks in advance.
Greetings, Kenny.