I have a weekend long gaming gathering coming up with about 20-30 peeps. The known games planned are Betrayal at the House on the Hill, Carcassonne, Robo Rally, Arkham Horror, Pirates, Chez Geek, Munchkin, Settlers (reg, seafarers, knights), Guillotine, Illuminati, Hackers, Crime Lords, Endecker, Strange Synergy, Lunch/Beer Money, Citadels, Zombies, Elixir, Flux, Stone Age, Apples to Apples and Nuclear War. Any easy to get and semi cheap games to add to this list or should i just contribute to hooch and food?

Also wondering what RPG might be simple enough to generate characters and finish a quick session in 4-6 hours in the zombie genre. If any at all. The more chaotic and funny the better.