The short answer is get your bike prepped, get your gear, show up to a learning curves day (which are held just about every race weekend on Saturday) pass the class, get your licence, and give er hell! If you've never been on the track before I'd probably suggest a track day or two to get comfortable before you head out and race, but for years there was no such thing as track days and the only way to get out there was to jump into racing, so that's definitely viable if you feel confident.
Not sure how prepped you are or how soon you were planning on getting into it, but a handful of us are doing a track day on September 2nd at Blackhawk farms (where most of the races for CCS midwest region are held) they have gear rental available if you're short on gear, and we're more than willing to help you get out there and try it out. Otherwise the next race weekend (for midwest) is September 22-23 (also at Blackhawk farms) and there's a learning curves licencing day on saturday. If you have more questions I can send you my phone number if you wanted to chat or we could chat on facebook or something. Good luck! always cool to see more people getting into racing!