Usually the starter kits will run you ~100 bucks, an ingredient kit will be in the 40 dollar range for an extract kit. I too would suggest picking up a book, and reading first. Then from there, you'll have a better understanding of the process, and when you come here, you can ask all the questions that you already know the answers to, but are looking for confirmation on (that's what I do)... and probably get the "RDWHAHB" answer (relax, don't worry, have a home brew).
Local Home brew supply store would be your best bet. Usually they have books and whatnot there as well, so you can make it a 1 stop shop.
Good luck, and happy brewing