I think I'm going to pick up a basic kit and take it up.
Grizzly Industrial has a couple of sets (and I have some gift certificates to use):
Are either of these any good?
What's the better deal on tanks? Buy a pair? Or a tank exchange deal? I figure I'll start with a couple of small ones and move up if I turn out to be any good.
The local Airgas web page (much more expensive equipment) lists all their sets with a CGA-510, CGA-300, etc., spec. What's that? I know CGA = "Compressed Gas Association". But are the numbers different gas mixes, regulator fitting sizes, or what?