Tons of videos on YouTube (how I'm learning). Abom79, oxtoolco, Joe Pieczynski, etc. Go to shars.com and you can look up the tool holder sizes, or see if it has any numbers on it. I would guess its a CXA based on teh size of the lathe. I buy most of my tool holders on Ebay from Shars or a couple others (they are all about the same price). I generally buy tool holders from Shars as well, and inserts from Ebay. I've been burned buying name brand inserts on Ebay (Sandvik, Kennametal, etc) as a lot of times they are fakes. I've had really good luck with zcc-ct inserts. Very reasonably priced, and perform well. I would recommend finding an insert you like that you can get easily/affordable, then buy tooling to match. You can use high speed steel if you want, but then you have to grind it correctly, otherwise you'll be chasing your tail with issues caused by bad grinds.