I came here to ask you all for help. I'm a Fashion & Branding student and Currently I'm working on a school project, creating a concept targeted at gamers and fashion for gamers. Portal is one of our sources we use in this concept.

To explain and introduce the non-gamers at my school what portal is and what the key elements are, I want to create a small presentation for them. And this is where I need help:

I was wondering if anyone has any great resources where I can get (illustrator) Vector images that I can use. Icons, Graphics of Logo's....well...actually anything! Or maybe some of you have those vectors for me?

Thank you so much, it would greatly be appreciated.