I got started by buying a few chips on eBay at this category: http://listings.ebay.com/aw/plistings/list/category899/index.html

I also found this board and keep learning every time I log on. Don't worry about narrowing your interests right away, a lot of us still aren't able to do so! You'll find a lot of different chips you never imagined and you may wish to persue those. Buy at least one value guide book, even at the $30-$35 price, these will pay for themselves in a hurry. This is an easy hobby to participate in at any level from casual to maniac, low budget to high-end. Next best thing to all the chips you'll find are the folks you'll meet in the hobby and in the club. Don't be bashful about asking questions around here either, welcome aboard!