Check out lock-lab.com and a guy named "bosianbill" on YT. He reviews a ton of stuff and gets into a lot of info on the subject.
As for which kits, I went with the whole training kit from Sparrows because it came with some nice practice locks. Practice is the key ! But from what I'm seeing different brands and kits that cost much less that would do just fine if you want to practice on any old locks you may have around. I figure I will keep the training kit as my "nice" at home kit and end up with some decent cheaper sets that I can tote around.
But I will probably get the EOD kit later. Oh and the prices on that site are Canadian so they are cheaper than what it appears.
There's a couple sets I liked for pocket kits. One is called the Lab 11 piece and another is Mad Bobs Ghost pro. Lastly I hope to have a couple single picks that will stay in my wallet.
! But from what I'm seeing different brands and kits that cost much less that would do just fine if you want to practice on any old locks you may have around. I figure I will keep the training kit as my "nice" at home kit and end up with some decent cheaper sets that I can tote around. 
