I would definitely like to hear from you guys to see what you would want to do event-wise. Hosting game nights would be easy but I want you to post in the comments below what games you are the most anxious to play with people.
Some ideas to get you started are: Team Fortress 2, Terraria, Dungeon Defenders, Left 4 Dead 2, Borderlands, Magicka, Worms Reloaded, etc...
Feel free to come up with some neat ideas too like a big group build in Terraria or something. I, personally can't wait to see what we're playing first.