I've also been talking about a special contract for the Swiss overclocking guys. Pangas, which is part of the Linde Group, as Chris pointed out several times, has a discount plan. And it starts to get really interesting if you can committ to take 25'000 liters LN2 or more per year.
So if you negotiate with them make sure that you overexaggerate I would tell them all overclockers in Europe might need 50'000 to 100'000 liters LN2 per year or so and then lets give it a try for one year. After that first year there could be further negotiations.