video marketing association

I am scheduling a promotions event for a video game store. What would be cool to do?
I’m thinking about joining forces with the WMMA (a marketing association at the college) and creating a joint event, as they need sponsors and the video game store needs promotion. The store’s focus is on all systems. They cover from Atari, NES, SEGA, to PS3, PSP, Wii & 360. What would be a fun event? Halo Tourny? Rock Band night??? Super Mario Level Race???????? Ideas?
Sounds cool.
OPMA – Okanogan Producers Marketing Association