What's the best pick for my first welder?

The bottle is a one time cost as long as you don't let the cert run out. Cheaper to swap a full tank that is about to expire than get it water tested or whatever they do to certify them. :BangHead: Always turn the tank off at the bottle when done. I have a reminder on paper that covers the on/off switch. Regulators can leak over time and you loose the tank. I forgot on my TIG and lost a freshly filled Argon tank over the winter, thus the reminder. Gas is the only way to go though, if you are want nice results and more flexibility.