Arguably the best flower stick company is lunastix. You cannot go wrong with Lunastix. I love my set. From them, the best beginner set to buy is the Master stix. They sell more expensive sticks but those are usually meant for faster harder tricks. You can still probably do every trick possible with the master set.
The number one free place to learn new tricks is
Welcome to Stixguru.com. Although he is trying to sell a product, you can't help but really appriciate a guy who gives out that many free videos of tricks you couldn't have come up with on your own.
Devil Sticks are a whole lot of fun. There really is something to what they say about them putting you into a new or different state of awarness. I hope you have fun with yours.