[kelvinn]

It really depends on how big of a hackathon you are running. In the previous year I have organised one ~50 person hackathon, and one ~200 person (part of a larger 1500 person event). Vastly different logistics.

Have a read of the Hack Day Manifesto, as it will probably trigger at least one 'aha!' moment of something you forgot: http://hackdaymanifesto.com/