Hello... I read a few interesting discussions on the site but I still am confused on my choice for the best CMS.

My requirements are:

-A magazine type look where I plan to add new content every week (feature an individual with his details and few of his artistic works)

-A forum where the visitors can discuss general art or about the weekly post

-A nested comment system

-User Registration

All of above is duly provided by Wordpress but it STILL holds a blog type look and I dont want that. I want the featured artists listed in an A-Z listing which makes it easier to find them (this Wordpress doesn't provide for). Also I want an integrated registration form where people can create their own profiles. I dont want to open a social networking site but want members and their discussion on postings that I make. I installed Wordpress, made a complete site but ended up deleting it. Because it will be a website related to art (photography) I also need templates/themes to be good looking. Sure a lot of requirements. To add to that I need it for free because I am penniless atm. Any suggestions?