Basically, what @clercqie said. Yes, English only is definitely good enough, though I consider it a personal challenge to have taught you people at least some (appropriately inappropriate) Slovak by the end of the... "social evening" part of Saturday.
As far as prize support goes, we'll have the kit at the very least (assuming they don't send it off to Prague again, like they did for Regionals ). As for other support, that really depends on the size of the tournament, though if we have more than we did for Regionals (which looks like a very real possibility right now), we're thinking additional store credit, possibly some older GNKs that I've hoarded away for occasions such as this!
Linkage in progress - Aiming to have a page up for both Netrunner and Conquest by the end of the week (along with the respective sign-up forms). Will post it up once it's there.