I started a club as well, it shouldn't be terribly hard if, as has been said above, you have a plan.
In order to sell the idea to my school's administrators, I came up with an extensive list of rules and regulations (parts of which are excerpts from the WCA regulations). I don't pull them out every meeting and make sure everyone's following them or something like that, but they are good to have and i think adds some degree of credibility (when everybody heard there was a Rubik's Cube Club at my school, there were mixed reactions...). If anyone wants, the regulations for my club can be found at:
http://www.freewebs.com/sirshazaam/tca.htm
it's at the very bottom of the page; you can just change the names, etc. to make it unique for your club, but i don't mind if anyone uses it as a template.
I think one very vital thing you need before you start a cubing club is to have a core group of people who you know will support the club and come to the meetings. What I did was get people interested early on, and then, after teaching a whole bunch of people to do the cube, general interest increases. The more people you have, I think, the better.
In terms of money, I don't think it's really necessary, but it's definitely not a bad thing to have. For my club, I'm charging money to be an official member, and that price includes the club t-shirt, which their name will get to be on. Basically we want to get speedstack timers..
hope all that is useful
and lol I thought I was the only brave soul who started a club...