pretty much what Subsonic say's really, shop around for the best venue, make it a small one, poss a back room of a bar something like that, lots of advertising, word of mouth etc, plug it on all the chat/clubbing forums. Get yourself some flyers/posters made up, do your own to start of with, cut cost as much as poss, like Subsonic say's you'll prob lose cash to start of with but keep at it & it will pay of in the long run!! ;)